Question 1

Which size should I choose (L or XL) if I am 187 cm tall, 90 kgs, chest around 100 cm?

Helio, Arc'teryx Guest Services · Accepted Answer

Hi Rocco, thank you for reaching out! It is difficult to recommend a size, as fit preferences can vary from person to person. We suggest taking your body measurements and comparing them with the Gamma Hoody measurements below to find the size that suits you best. If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit.

Size L
Chest Width: 127.1cm
Waist Width: 119.6cm
Center Back Length: 76cm
Sleeve Length (from center back neck to shoulder point to bottom sleeve edge): 95.5cm

Size XL
Chest Width: 137.1cm
Waist Width: 129.6cm
Center Back Length: 78.6cm
Sleeve Length: 98.1cm

Please note that we offer free shipping and free returns within our authorized return window, so you’re welcome to order multiple sizes, try them on at home, and return any that don’t work—completely free of charge. We hope this helps!

Question 2

Hi, can you provide the garment measurements for sizes M and L? Thanks!

Helio, Arc'teryx Guest Services · Accepted Answer

Hi there, thank you for your question! Here are the key measurements for the Gamma Hoody Men's in sizes M and L:

Size M
Chest Width: 119.5cm
Waist Width: 112cm
Center Back Length: 73.5cm
Sleeve Length (from center back neck to shoulder point to bottom sleeve edge): 93cm

Size L
Chest Width: 127.1cm
Waist Width: 119.6cm
Center Back Length: 76cm
Sleeve Length (from center back neck to shoulder point to bottom sleeve edge): 95.5cm

We hope this helps!

Question 3

what is the sleeve length of a M and L

Seymour · Accepted Answer

Hi Edgar, thanks for reaching out. The Gamma Hoody has a sleeve length of 93.0 cm in size M and 95.5 cm in size L. We hope this helps!

Question 4

is the gamma hoody waterproof

Seymour · Accepted Answer

Hi there, thanks for reaching out. The Gamma Hoody is made with Fortius DW 2.0 fabric, which is weather-resistant, breathable, and durable. That said, it is not waterproof. If you are looking for a waterproof jacket, we recommend looking into one of our options that features GORE-TEX. We hope this helps!

Question 5

Is this gamma hoody, previously named the gamma light hoody

Seymour · Accepted Answer

Hi Arnu, thanks for reaching out. The Gamma Hoody was previously the Gamma LT Hoody. We hope this helps!

Question 6

May I know the main difference between Gamma MX Hoody and Gamma Hoody? Which have better breathable for hiking? Are they both suitable to add mid-layer inside, and won't feel too tight?
Thanks.

Seymour · Accepted Answer

Hi Jeff, thanks for reaching out. The Gamma MX Hoody is the warmer option. It is made with a Fortius 2.0 softshell fabric that includes a fleece backer, which adds insulation and is intended for mixed conditions. Because of this added warmth, it is less breathable and better suited for cooler temperatures. The Gamma Hoody is lighter weight and does not have a fleece backing. This makes it noticeably more breathable and a better choice for hiking, especially in milder or warmer conditions where managing heat and moisture is important. Both jackets feature our regular fit and are designed to allow for layering. You can add a light to midweight layer underneath either option without it feeling restrictive. We hope this helps!

Question 7

J’aimerais savoir si ce modèle de veste est coupe vent

River · Accepted Answer

Bonjour Fredo, merci pour votre question concernant la veste à capuche Gamma. Ce modèle est conçu avec un tissu softshell hautement respirant qui offre une excellente protection contre le vent, tout en permettant une liberté de mouvement et un confort optimal lors d’activités variées en montagne ou au quotidien. Bien qu’elle ne soit pas entièrement imperméable et coupe-vent comme une veste hardshell, la Gamma est pensée pour résister efficacement aux rafales et aux conditions changeantes, tout en restant respirante et durable.

Question 8

Hi. What type of specialist washing product should i use , softshell type? I use grangers and  nikwax specifically.  Grazie mille

River · Accepted Answer

Hello Trev, tor softshell garments, we recommend the Nu Technical Detergent, a high-performance, no-residue formula that gently and thoroughly cleans technical fabrics without compromising breathability or water repellency. It’s specifically designed to restore performance in outdoor apparel, including GORE-TEX, fleece, and softshell materials. For more informations about product care, visit our ReCARE page: https://arcteryx.com/ca/en/help/product-care

Question 9

measurements for xxl?

Seymour · Accepted Answer

Hi there, thanks for reaching out. We're happy to provide three key measurements to help with your sizing decision for the Gamma Hoody. Please find the measurements below:

Size XXL
Chest Width: 147.1 cm
Center Back Length: 81.1 cm
Sleeve Length from Center Back: 100.6 cm

Question 10

Is the jacket fully waterproof ? I do trail running so I need to be sure that even with a lot of rain I'll stay dry underneath

Helio · Accepted Answer

Hi Arnaud, thank you for your question! The Gamma Hoody is a weather-resistant softshell designed to shield you from the elements while maintaining maximum breathability. It’s treated with a DWR (Durable Water Repellent) finish to help repel water, but it’s not fully waterproof. It will keep you protected during light rain or snow, but this piece is not designed to keep you dry during prolonged exposure to moisture. For reliable waterproof performance during active use, especially running, we recommend exploring our GORE-TEX jackets, which are built to keep you dry and comfortable in wet conditions. We hope this helps!

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