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Please select your preferred shipping region:

Australia
Austria
Belgium
Canada
China
Czech Republic
Denmark
Finland
France
Germany
Ireland
Italy
Japan
New Zealand
Norway
Poland
Spain
Sweden
Switzerland
The Netherlands
United Kingdom
United States

New Footwear

Run steady in the new Norvan LD 4, with a responsive ride, balanced traction, and locked-in fit over mixed, complex terrain.

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Rho Heavyweight Zip Neck Men's

$170.00

1 / 5

Rho Heavyweight Zip Neck Men's

Rating Distribution

Select a row below to filter reviews.

61 reviews with 5 stars.

9 reviews with 4 stars.

5 reviews with 3 stars.

2 reviews with 2 stars.

4 reviews with 1 star.

Overall Rating

52 out of 61 (85%) reviewers recommend this product

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Rating Summary

Fits:, 2.7 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 4.6 out of 5

Comfort, 4.4 out of 5

Warmth:, 4.4 out of 5

9 to 38 of 81 Reviews

9 – 38 of 81 Reviews

Your Height:176cm - 182cm

5 out of 5 stars.

Comfy

Really warm and comfy. I’m 1,80 m and 85 kg, for me the XL fits just right, only the sleeves are a tiny bit too long.

Q: Size Purchased:

I use this product for:Casual Wear

Yes, I recommend this product.

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Fits:, 2.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 4.0 out of 5

Comfort, 5.0 out of 5

Warmth:, 5.0 out of 5

5 out of 5 stars.

Warm out on the walking routes thanks to RHO!

I will admit, I was skeptical at first of using synthetic materials as my base layer, as I’m outside all day carrying the mail/amazon, and deal with harsh winters in Oregon. It keeps me warm and I don’t need to layer up. I just wear my uniform blue shirt over my RHO heavyweight and lastly my shell and I’m good. Highly recommended!

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Adirondacks, NY

Your Height:183cm - 190cm

5 out of 5 stars.

Essential Layer

This has become my single most important winter and fall layer for everything from casual day hikes to overnight alpine expeditions. I use it over a wool base and that provides more than enough warmth for active times with temperatures 20-40F. I have two that are a few years old and going strong after taking lots of abuse. Cannot recommend this enough.

Q: Size Purchased:

A: Super warm, easy to layer, durable

I use this product for:Trekking, Climbing, Mountaineering, Hiking, Ski/Snowboard

Yes, I recommend this product.

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Fits:, 2.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 4.0 out of 5

Warmth:, 5.0 out of 5

5 out of 5 stars.

RHO Heavy weight

This top fits absolutely perfectly. It is the perfect balance of weight, fit, comfort and dress. The colour is stunning

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Your Height:168cm - 175cm

1 out of 5 stars.

Exceedingly poor quality mid-layer!

Atrocious quality! I use this garment as my mid-layer fleece. It wicks vapour well and keeps me warm in the wet; however, the pocket just peeled off! On examination it appears the the pocket has just been glued on not even a stitch! Arc’teryx really need to look at this, not worth the money (£130)!

Q: Size Purchased:

A: Warm, fast wicking

A: Awful quality, poorly made!

I use this product for:Trekking, Climbing, Mountain Biking

No, I do not recommend this product.

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Quality of Product, 1.0 out of 5

Comfort, 4.0 out of 5

Warmth:, 4.0 out of 5

Response from Arc'teryx:

Arc'teryx Guest Services

Hi there. Thanks for sharing your feedback on the Rho Heavyweight Zip Neck. We are sorry to hear about the chest pocket failing on yours. We noticed you filled out a Product Service Request form and we hope our team can find a suitable solution for you.

Gee, I would like to hear the outcome of this before I spend this much money. I was getting ready to purchase then I saw this.

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Your Height:176cm - 182cm

5 out of 5 stars.

Excellent warmth and wicking properties

Exceptionally well made, comfortable all day when active but remaining warm when static. So good I have four!

Q: Size Purchased:

A: Warmth, wicking

A: Starting to bobble along the seems

I use this product for:Commuting/Travel, Trekking, Trail/Running, Casual Wear, Hiking

Yes, I recommend this product.

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Fits:, 3.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

Warmth:, 4.0 out of 5

Your Height:183cm - 190cm

5 out of 5 stars.

Good performance, great colour

Bought for skiing, suitable for everything, keeps me warm, but i can regulate it well with the neck zipper, good quality

Q: Size Purchased:

A: Quality, performance

A: dont know yet

I use this product for:Trail/Running, Mountain Biking, Casual Wear, Hiking, Ski/Snowboard

Yes, I recommend this product.

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Fits:, 4.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

Warmth:, 5.0 out of 5

4 out of 5 stars.

update: Yukon longer than Pytheas

Update: Yukon/mustard colour (mar 24) is longer, thinner, stretchier and has longer sleeves than the others green one (Dec 23). Both size S Would recommend green/pytheas, would not recommend Yukon personally. Updated with photos.

Yes, I recommend this product.

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Quality of Product, 4.0 out of 5

Comfort, 5.0 out of 5

4 out of 5 stars.

update: loved the green, mustard/Yukon is floppy

Yukon/mustard colour is larger than the green one, is a thinner material and is much stretchier, making for a poorer, less snug fit. Updating with photos showing Yukon (mar 24) with longer length and sleeves than green (Dec 23), both size small.

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Body TypeAthletic

4 out of 5 stars.

Love the green one, mustard is floppy

Bought the green one in December 23 and it's nice and thick, reasonably warm, smooth to the touch and fits quite snugly. Great purchase. Really lvoed it so just bought the mustard one (Mar 24) and it's much... floppier? While the material is super soft, it's not quite as warm and thick, and isn't as stiff (so the collar flops down and the sleeves aren't as snug). Not quite sure why this is the case, but I'm much less happy with the mustard than the green one. Will ask Arc and see if there's been a design change in the last month or so. 5* for the green (Dec 23) 3.5* for the mustard (Mar 24) Averaged at 4*

Q: Size Purchased:

Q: Your Height:

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Fits:, 3.0 out of 5

Fits Very Small

Fits Very Large

5 out of 5 stars.

Incredible Feel

Very soft and warm. Also very stylish if you have an awesome bod like mine. It’s as I imagined.

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5 out of 5 stars.

A winter wonder

I brought this 2 weeks ago, was expecting it to more of mid layer with T shirt underneath, As i own the Rhio Lt so was wanting to wear this over the top, but clearly a thick base layer, as you will struggle to wear anything underneath, but that saying, feels great against the skin. Needs to be cold or you will overheat in this top, I absolutely love the cut, as i’m small, but stocky build, but some may not like the tight fit and find a bit restrictive. Goes great with an arcteryx Gillet. Its defo a 5 stars from me and ill be buying a few in different colours to help with harsh brecon beacons weather

Q: Size Purchased:

A: Softness against the skin tight fit

A: Some will find too restrictive

A: Cold walks/ footy from the sideline

Q: Your Height:

Yes, I recommend this product.

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Fits:, 2.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

Body TypeAthletic

4 out of 5 stars.

Tried and true if you can’t wear wool

Love the Rho products but if you are going to change the sizing please us know. Last 2 years this product ran true to size. This year you need to size up. For me medium to large. Annoying as I was on a ski trip and just got my order in the night before. No time to check sizing… I trusted it to be the same as always. Nope! New sizing and Arcteryx didn’t note this on the website. Frustrating. Couldn’t wear it. Returned it for a large.

Q: Size Purchased:

A: Material is amazing

A: Sizing change

A: Winter Sports, skiing

Q: Your Height:

Yes, I recommend this product.

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Fits:, 2.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 4.0 out of 5

Comfort, 5.0 out of 5

Body TypeAthletic

5 out of 5 stars.

Great quality

Great quality and exactly what I was looking for. Fits perfectly.

Q: Size Purchased:

Q: Your Height:

Yes, I recommend this product.

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Fits:, 3.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

4 out of 5 stars.

Good but feels heavy.

This is good but I find the material a bit thick and heavy. I have the pants too and I feel the same way.

Yes, I recommend this product.

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Quality of Product, 2.0 out of 5

Comfort, 2.0 out of 5

Body TypeAthletic

5 out of 5 stars.

Hail Polartec Power Stretch and Arc' fitting

A little about me – 1.75m (5ft 9in) tall and weigh 73kg (161lb). My chest measures 108cm (42.5in) and waist 84cm (33in) with an athletic build normally a size medium in Arc’. I got a medium in the Rho Heavyweight and it fits very well indeed. Close enough to wear as a baselayer if needed but loose enough for me to wear it for my preference as a mid-layer fleece over a Phase long-sleeve base. The directional wicking and performance stretch of Power Stretch is just excellent for the wet conditions prevalent in the UK. In winter I can wear this alone with a shell on walk-ins or together with a Proton FL in colder conditions. I have two colourways - Multiverse and Phenom - they look cool as part of a layering system!

Q: Size Purchased:

A: Wicking, Stretch, Fit

A: Mountain Walking, Mountaineering

Q: Your Height:

Yes, I recommend this product.

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Fits:, 3.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

Body TypeAthletic

5 out of 5 stars.

Great baselayer

A fine baselayer, and you can even fit a thinner layer underneath. The zip is smooth

Q: Size Purchased:

A: Alpine climbing and skiing

Q: Your Height:

Yes, I recommend this product.

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Fits:, 3.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

Body TypeAthletic

5 out of 5 stars.

Amazing fleece

I bought this a few weeks ago and it was money well spent! Bought it just before a ski trip, and it did not let me down. It is a super warm and comfy fleece, and the stretchy fabric allows for great mobility. Highly recommend!

Q: Size Purchased:

A: L, because i like it baggy

A: Very varm and comfy

A: Quite ecpensive for a shirt

A: Everyday use and also snowboarding

Q: Your Height:

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Fits:, 3.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

3 out of 5 stars.

Well.......it's more than a base layer

I'm 6'3", 210 lbs. I'd like to think myself as slim. The RHO Heavyweight Zip Neck is indeed a HEAVY base layer. It's a very thick base layer, the XL size arms are skin tight on me and the body is snug. Seems they should have compensated for the thickness of the material. This would be an excellent mid-layer if more room was provided in the arms. Impossible to wear a thin long sleeve base layer under it, must wear a short sleeve BL. Compare this to the XL RHO Hybrid 1/2 Zip base layer. Now this is as close to perfection for a base layer as I've seen. Very comfortable fit in the body and arms and warm fabric.

Q: Size Purchased:

A: Very warm layer, better mid-layer

A: Arms are skin tight!

A: Skiing, winter activities

Q: Your Height:

No, I do not recommend this product.

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Fits:, 2.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 2.0 out of 5

3 out of 5 stars.

Not the same as before

Purchased this last month to wear as a heavier base layer . I have two others both of those are @ 6 yrs old, that are pretty beat up. The workmanship is first rate as always . However, disappointed with the fabric This batch of powerstretch fabric is not as thick or as stretchy as my previous ones. It will be interesting to see a warmth and durability comparison. Was really hoping I would have a true replacement for my old ones... not happening. Since I live in the middle of no where packaging and return stuff is a pain, so I will suck this one up. I will check other companies see what is out there... I may not purchase a second one from Arcteryx I hate to think Arcteryx is going trend and moving away from its hardcore roots .

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Yep noticed this too. The material is thinner and the fit is tighter than before. However, the material does feel a lot softer than before and haven't noticed any change in warmth performance. But, someone at Arcteryx QC should definitely look into the sizing change because I've noticed a few other people complaining that their normal size in this base layer is too tight.

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Toronto, Ontario

Body TypeAthletic

5 out of 5 stars.

Fantastic Layer

Fantastic heavy weight base layer that can be worn as a standalone. Wore mine while trekking to the Refuge at Illiniza Norte in Ecuador as we had nice weather. Once at the refuge the weather turned a bit colder and windy so put on my Alpja SV and was good to climb for the summit. Excellent piece of kit.. I’m going to get another colour!

Q: Size Purchased:

A: Warm, good fit

A: Mountaineering

Q: Your Height:

Yes, I recommend this product.

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Fits:, 3.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

5 out of 5 stars.

All-weather workhorse

I've been wearing this for about three months now, and it's quickly become one of my favorite layers to have on in a variety of conditions. It isn't baggy which makes it easy to add layers on over it, but I can still comfortably fit a wool base layer on underneath for cold days. I've liked it most as a standalone layer while bouldering since I can be active in it without being too hot, and easily put on a warmer layer over if I'll be staying still for longer. On a November climbing trip to Bishop, CA, I ended up wearing this every day while sleeping, climbing, and hiking. While I haven't torn the material on rock, if I was spending a day scratching against rocks I'd probably wear a different outer layer since this fleece might not stand up to extended use on granite. Overall, I've been very happy with this Rho Heavyweight and have been surprised with how often I reach for it on days outside.

Q: Size Purchased:

A: Warm, breathable, stretchy

A: Climbing, Hiking

Q: Your Height:

Yes, I recommend this product.

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Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

5 out of 5 stars.

Warm and light.

Warm and light weight. Perfect for hiking or an under layer for skiing.

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5 out of 5 stars.

A hidden gem

I bought this one in Black Sapphire, after giving up waiting for the Kyanite jacket to get restocked (come on folks get that supply-chain in order). I am very pleased with the quality, cut and material of the Rho. It’s the material that makes this top incredible. Polartec power stretch feels so good that it doesn’t really feel like you are wearing a top rather it’s more like you are coated in a layer of soft fleece that moves seamlessly with the flow of the body (sounds like ad copy but only way I can describe it). As a result, there is minimal need to use too much articulation in the tailoring (think Delta Jacket… which is very cool). I sized up to an XL so I have more of a leaner look rather than looking like a “gym-bro” with a size L. Couple comments to close, if Arc made a Delta Jacket with all the panels and articulation (and pockets) in this material it would absolutely crush the fleece jacket segment. Lastly, I feel this top is a bit of a hidden gem tucked away in the base layer aisle. If this was in the fleece section (and had regular sizing) it would be perpetually sold out like jacket.

Q: Size Purchased:

Yes, I recommend this product.

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Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

Body TypeAthletic

5 out of 5 stars.

Runs one size too small

Great fabric for intended outdoor use on a ski hill. Went by the sizing guide for 6'3", 210 lbs and arm length, but a large was too small. Returning and getting an XL.

Q: Size Purchased:

A: Great fabric, warm

A: Skiing, hiking, biking

Q: Your Height:

Yes, I recommend this product.

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Fits:, 2.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

5 out of 5 stars.

Great product.

The material is nice and worth the price. I purchased all the colors and love them.

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Body TypeAthletic

5 out of 5 stars.

So comfortably soft and warm and love the snug fit

I’ve had this a year now and it’s my favorite piece. I wear it as a top with jeans it’s so comfortable and looks great. I also wear it hiking. I recommend wearing a very light merino t- shirt underneath it protects the garment from underarm perspiration. Please bring back the Multiverse color ( Purple). That’s the reason I bought it in the first place.

Q: Size Purchased:

A: Very warm, snug fit for layering.

A: ADK’s and Whites winter hiking

Q: Your Height:

Yes, I recommend this product.

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Fits:, 3.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

If purple were an option, I’d be in trouble.

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5 out of 5 stars.

Amazing quality

Super comfortable feel. Though the product is meant to be “close to the skin” as a base layer, I opted to go up an extra size so that it would also be used as a stand alone mid layer

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5 out of 5 stars.

So Warm and Comfortable

It's so warm, but not too thick to the point at which it is restricting. It is super flexible/form-fitting, but in the right places.

Q: Size Purchased:

A: Super Warm, High Quality Material

A: Need to order size up!

Q: Your Height:

Yes, I recommend this product.

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Fits:, 2.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

Body TypeAthletic

5 out of 5 stars.

Very comfortable.

I love it so much I bought another one. Quite a snug fit but really comfortable and very warm.

Q: Size Purchased:

A: Comfy, warm looks good.

A: A little tight

A: Day to day wear

Q: Your Height:

Yes, I recommend this product.

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Fits:, 2.0 out of 5

Fits Very Small

Fits Very Large

Quality of Product, 5.0 out of 5

Comfort, 5.0 out of 5

9 – 38 of 81 Reviews

Rho Heavyweight Zip Neck

rating 4.4938 out of 581 Reviews

Warm, versatile Polartec® Power Stretch® Pro base layer for cold conditions.

$170.00

Colour:Black

Size:

Sizing chart & Fit guide

Delivery

Free shipping & Free returns

In-store availability

Pickup information

Product details

Rho Heavyweight Zip Neck Men's

The Rho Heavyweights – our warmest base layer tops – are made for cold days and mixed output. On the move, the Polartec® Power Stretch® Pro stretches for outstanding freedom of movement. During rest phases – or when it gets really cold – the fleece’s soft brushed interior traps heat to keep you warm. The fleece’s durable nylon outer has a smooth face for comfort under layers, the tall collar extends warmth, and the deep front zipper aids heat dump and makes on-and-off easier.

Read more

Rho

Thermally efficient base layer with excellent moisture management properties. Has stretch comfort.

Ski & Snowboard

Designed with specific snowsports features for efficient protection, layering and movement.

Polartec®

Synthetic fleece textiles with stretch, warmth and air permeable properties. Offers durability.