Proton FL Hoody Hombre

One fact: Even though I've been buying, wearing and abusing mountain gear for nearly 40 years, I'm still not smart enough to avoid making big mistakes like this, yet. The only thing I can say is that this Proton FL Hoody is completely useless for activities such as winter ice, alpine ice, or high mountain rock. Completely useless as a mountaineering garment, in short. Nobody expects miracles, every fabric has its limits, but in the case of the Proton FL the resistance to abrasion, puncture and tearing is simply none (much lower than a Gamma SL Hoody, for example). Moreover, although it breathes quite well, when designing it, the mistake was made of not knowing how to find the balance between breathability and protection against the wind. It doesn't cut the wind much more than a laminated fleece like a Powerstretch, for example. Furthermore, as a middle layer, and as another person has written here, 250 EU would be absurd, added to the fact that despite being a combination of insulation plus a shell, it provides less heat than a Delta LT, for example. It might be a great running hoody, but that's about it. Nice? very nice. Mine in Conifer is very pretty, but that's about it. Basically, the mistake is mine, but... Regards

I have had this piece for a while but don’t wear it that often aside from back packing trips. I would wear it more but probably half of the time I zip up the material gets caught in the zipper pull. It is beyond frustrating. It looks like there is just a bit too much material on the inside which cause the snag. Furthermore, every time it catches it stretches the metal in the zipper pull. It stretched and weakened the zipper pull significantly to the point it broke off. The Victoria location was great and put another on for me. Unfortunately it kept snagging and just two weeks ago, while on the west coast trail, the zipper pull broke off again. It sounds so minor but this was very worrisome for me because we had just be drenched and were being hit with a storm. I was doing everything I could do keep my body heat in so not being able to zip up my mid layer was scary. I feel like my experience is probably a one off flaw. I have many other pieces from arcteryx and never have a snag issue - this one is aggravating enough for me to actually submit a review though.

I always loved my R1 and didn't think anything could beat it for that weight of insulation, but I think I finally have a new favourite. In addition to being (very!) fuzzy and soft, breathable, and warm for its weight, the Proton FL offers significantly better wind protection than the R1, which can make all the difference on a cool day where you don't need a heavier insulated layer, but don't want to freeze while on belay. On a recent trip to Eldo, my partner was freezing so I gave her my Nuclei FL, and was very pleased with how well this jacket kept the wind out. The Solitude colour is beautiful, and while it does show dirt, it hides the chalk! Honestly, seeing the dirt is a good reminder to wash my jackets a little more often...

Love how lightweight this jacket is but also how convenient it is to pack. Doesn’t take up too much space! I took this on a trip and it is also my go to for hikes at the moment. Keeps me warm on the trails!! Highly recommend!

I am very happy with this new proton hoody. I run hot while working hard outside and have always found the Proton LT to be too hot unless it's -20 or below. This new proton is much more breathable and comfortable and I bring it everywhere for fall, winter, and spring adventures. The outer shell layer cuts the wind and sheds light moisture, so I don't have to use my hardshell while moving uphill. I layer this with the proton vest on top if I get cold.

Love love this jacket ! And I plan to buy another colour . Just wish the logo would have held up. Washed it once ( followed washing instructions ) and the logo started peeling after a couple of weeks of wearing it.

This is a great and versatile piece. I wanted a jacket that I could wear rock climbing on cool mornings and in spring temperatures (0 to 15 degrees C). Most insulated jackets are too warm to wear while you are climbing and I usually only can use them when I am belaying - not this one. It has a super durable abrasion resistant face fabric that I have dragged against stippled limestone and shuffled up through granite chimneys. The jacket shows very little sign of wear and has not torn at all with these activities. Also, the inner lining is fleecy, not pile fabric, so it will not lose loft/warmth over time and is great for moisture wicking. This is a top tier climbing jacket for cool days. My only qualm is that it rides up quite a bit when I reach.

I just replaced the older Proton FL with this one and love the updates. It has a much softer feeling insulation. The lightly insulated hood is another great addition. I use this doing anything moderate-high output activities.

I have a lot of Arcteryx jackets. This is the best for light insulation layer, better than Atom SL from my experience. I wear almost Arcteryx in size M, but L for Atom SL and Proton FL. The Proton FL in L is very close to Gamma SL in M, and I can layer Gamma SL in M over Proton FL in L; while Atom SL in L is a bit longer.

Had my Proton FL Jacket for a couple of months now and am wearing it for everything - ski tours, dog walks, on my bike - everything. I live in the Sierra and it's been mild, so the balance of warmth, wind resistance, and breathability is turning out perfect for spring - especially when I'm moving fast. It's comfortable to wear, and packs up pretty small. And I got caught in the rain for about 30 minutes and it held up - remains to be seen if that's DWR or the shell material. Great go-to when an Atom's a little too much.

I have multiple atom jackets and have always had an issue with choosing to wear them on warm windy days and inevitably overheating. The Atom is great, don't get me wrong. But the Proton FL is going to be my new warm weather jacket. The insulation is warm and super soft. I would wear this jacket against the skin all the time. It is great with t-shirts. I can see myself using the Proton FL as my winter mid layer instead of the atom. This jacket combined With a GoreTex shell is maximum comfort to weight to protection ratio. When it starts to get too hot on the mountain, this jacket will let you feel that breeze with the vents open. Two of my co-workers have their own and convinced me to try it out. My other co-worker has one on the way. Get them while they're hot!

I wanted to find the best fitting Arcteryx jacket that I could use primarily for hiking in 35-65 degree weather. I tried the Atom LT, Atom SL, and Proton LT ranging between size M/L. I'm 6'3, 190lbs, 32W with broad shoulders/chest so finding the right size was difficult. Most of the larges came out baggy in the midsection/waist while mediums were too trim in the shoulder/chest. The Atom's and Proton LT are all great for different reasons but made me reserve them for lighter activity since I often took them off mid-hikes from running hot. Along comes the revised Proton FL and it's checked the sought after box for me. I took it on a hike in 40 degree weather with a lightweight base layer and I didn't take it off once. The amount of insulation is just right for higher output activities, it'll keep you warm when you need it but won't force you to take it off during a more strenuous uphill. The fit is just where I would want it to be. I can lift my arms and the jacket stays at the hips while the sleeve stays right at the base of your hands. It's trimmed down through the midsection (which may be different than prior versions) and with a backpack, it doesn't out of place. I've used it on lighter walks in the cold and sat in it directly in the sun, never once needed more or less. I haven't tried it in warmer climate yet but I'm so happy with the performance I felt like it deserved a review. Think Arcteryx knocked it out of the park with this one. p.s. I bought the Conifer color way and it is different in person than online. It's more of an darker alpine green with a pistachio colored trim. Liked it way more in person than I thought I would.

I’m an XL in all things Arc’teryx. Given the black colourway sold out so fast in my size, I thought I’d try the ‘size up’ option and went with the last XXL. It didn’t work out for me. The biggest reason? The cuffs. XL Arc’teryx gear typically sits exactly where I want it to on my wrist (just below my watch). The arms on the XXL Proton are longer, which is to be expected, but I was not expecting a redesign to a looser cuff. The new cuffs would not stay in place as nicely as they do on my Atoms, and I was left rolling up the sleeve one or twice - yeah, not a long term solution. Sure m, they’re easier to shove up your forearm, but I can still do that on my Atom without much trouble. I’d implore Arc’teryx to move back to a snugger cuff in the next redesign. I also tried wearing the XXL with a Heavy sweater and then a Fortrez hoody underneath to see how that worked, as I liked the idea of being able to layer. I was surprised to see there was still a lot of room all over. I could have fit my Atom LT underneath. I haven’t worn L Arc’teryx in awhile, so it’s hard to comment, but I’m left wondering if there is a bigger size gap between XL and XXL than there is between, say, M and L. Anyways, that’s my word of caution if you’re considering sizing up. Your mileage may vary. And as far as the rest of the jacket goes? Awesome. Great materials, nice finishing, and the Octa-Loft is great next to the skin. Really great.

I am a huge fan of the Proton FL and was looking forward to this updated version. Quality is still excellent but it lets itself down in the sizing department. The waist and hips are noticeably trimmer than on the previous version (chest and shoulder measurements still fit well) and make it a far tighter fit. I don't want to size up because this will increase the arm length and chest/shoulder space which won't work for me, so I'll be sticking with my 4 Proton FL jackets from the excellent previous version!

I love that not nothing is laminated on this revision. Fit is tighter than previous version but more comfortable. Sizing up might help if you’re in between sizes and want to have room for layering. I’d say it’s a little more breathable than previous version AND maybe a little warmer due to the octaloft being indirectly in the skin. Smart choices were made on this jacket.

I have over a dozen Arc'teryx jackets, one for every type of weather, I've been caught in the wrong one according to the weather a few times. Years ago I fell in love with the Atom LT, but I snagged it on every bush, cactus or random crap in the grocery store! Later I found the Proton LT, much better face fabric for my needs but just didn't breathe as well.I bought this jacket in the spring and it is the only one I want to wear! It's the perfect California jacket, Perfect in the Grag shadows or when the sun goes down, cuts wind well! It's like a second skin that breathes like the Atom LT and sheads water like the Proton LT. After all these years I finally found "the jacket" and now you can't buy it anywhere online! Resellers want $600.00 for it! lol!

I have used this jacket pretty much everyday I am in the mountains for the last few years, summer and winter. For me it has the perfect combination of insulation, wind resistance and breathability. I really like the double chest pockets and the fact that the hood is not insulated, this makes it less bulky, but it still works great when its windy and also as a sun protector.

I really like this jacket. I bought it wanting to get a coat that would work for 40-70 degree temperatures and the Proton FL perfectly fits the bill. Construction is high quality and the coat is warm yet breathable. The only downside is that the main zipper unzips while walking around sometimes. If this were fixed, it would be the perfect spring/fall jacket.

Bought for spring/fall temps. Excellent insulation for brisk temps. Works well under my Gamma LT. good snug fit with that allows for excellent motion

Ich habe die Jacke nun seit 6 Monaten und möchte die vielseitigen Einsatzmöglichkeiten nicht mehr missen. Bei Wanderungen ist sie auf jeden Fall dabei, falls es mal kühler wird. Und in Herbst und Winter trage ich sie gern unter einer Shell.

Had the Proton FL for about a year now. This amongst the pile of other Arcteryx gear. Have to say, it has to be my favorite piece. This Octaloft insulation is pretty incredible. I wear it mostly as a standalone (thin baselayer underneath), favoring Spring and Fall hiking. The breathability is outstanding. For how thin it actually is, so is the warmth. It handles some wind but a cold gust will get through it, hence the tradeoff with breathability. But a thicker baselayer remedies this quite well. It handles light rain, but won't do a downpour, so have a shell at the ready if that's going to happen. It also does double duty as a good mid-layer in cold, under a goretex shell, again, allowing good moisture management and remarkable insulation. For my hiking in dry conditions with temps 12 degrees Celcius and down to about zero, it's The first thing I reach for and I am blessed with allot of other options. It's a phenomenal piece of gear, with fit/finish top notch. Tip: if you have to pack it down for storage, it may unfold with some wrinkles. Easy fix, spray some clean water on the fabric, put it in the dryer for 10 min and all smooth again.

I love this jacket, extremely light but has decent warmth and can breath unbelievable.

My preferred mid layer for the spring and summer. Packs down well and doesn't take up much space in your pack. Breathability is great! It really helps to regulate my temperature during various activities (climbing, biking, spring snowboarding, etc.) The two chest pockets and the low profile hood are also a nice touch.

This jacket excels in situations where you put it on and leave it on. It is very breathable and provides adequate weather and wind protection provided you know what you are using it for. It is an excellent stand-alone piece for autumn and spring, and it could also be used during high output activity in the winter. I use the double chest pockets all the time, whether climbing or out in town. Great fit, layers well under Alpha FL shell, and the shoulders have withstood many hours carrying various packs.

I was looking for a lightly insulated jacket for climbing and hiking that was packable that would be burly enough for an outer layer. The jacket packs well into it's own hood, but clipping the elastic seems a bit tenuous, and I'm more comfortable storing it in a small bag. The only thing I was disappointed with was durability. On my second or third real outing with the jacket, we were doing some moderate scrambling. Sadly the shell got punctured by a wayward branch, and has a small ~1cm hole and some loose threads. While I was very comfortable on the 50-60F hike, I was a bit disappointed a jacket that costs this much was already showing wear 3 weeks into ownership. Wish they hadn't discontinued the 40D version. I am 5'11", 170 lbs. with a 42" chest, I usually wear a medium, but a Large fits me very well all around, chest, torso, and arms.