Question 1

Hi. May I know the measurement of size XS and S?  I see lightweight version has UPF rating. Does Gamma Jacket have it, too?

Thanks.

River, Arc'teryx Guest Services · Accepted Answer

Hello Jeff, the Gamma Jacket is not UPF‑tested like the Lightweight version, and while the thicker fabric will offer some natural sun protection, we cannot guarantee a specific rating. Here are the measurements for the Gamma Jacket:

Size XS
Chest width: 106.9 cm
Waist width: 99.4 cm
Back length: 69.7 cm

Size S
Chest width: 111.9 cm
Waist width: 104.4 cm
Back length: 71.0 cm

Question 2

Are the pocket zippers sewn in or bonded onto the fabric using glue?

Beth, Arc'teryx Guest Services · Accepted Answer

Hi Chris, thanks for your question. Yes, the pocket zippers on the Gamma Jacket are sewn into the garment, not bonded to the fabric with adhesive. The jacket is constructed using sewn zipper installation for durability and long-term performance. If you have any additional questions, our Guest Services team would be happy to help through the Contact Us page on our website.

Question 3

se puede usar de manera casual? no solo para actividades como senderismo o excursiones?

River, Arc'teryx Guest Services · Accepted Answer

Hola Vale, Gracias por plantear una pregunta tan interesante. La respuesta es… ¡sí, por supuesto! La chaqueta Gamma está diseñada para actividades de montaña, pero su diseño limpio y depurado y su versátil protección frente a los elementos hacen que funcione igual de bien en el día a día. Su tejido cortavientos y repelente al agua te protege cuando cambia el tiempo, mientras que su elasticidad y transpirabilidad te dan libertad de movimiento tanto en tus desplazamientos diarios como cuando viajas o te mueves por la ciudad.  Su construcción robusta está preparada para terrenos exigentes, pero también es una chaqueta ligera y cómoda para el día a día. Si quieres saber cómo se compara la chaqueta Gamma con otros modelos de Arc’teryx para el día a día, ponte en contacto con nuestro equipo de Atención al Cliente a través de la página Contacto. Estaremos encantados de ayudarte.

Question 4

is there a hood and does it foldaway into collar?

Beth, Arc'teryx Guest Services · Accepted Answer

Hi there, Great question! The Gamma Jacket does not have a hood, and there isn't a fold-away hood concealed in the collar. If you're after the same versatile softshell performance with added coverage for changing mountain conditions, you may want to check out one of our hooded Gamma styles, such as the Gamma Hoody. Additionally, our Guest Services team would be happy to provide personalized product guidance to help you find the best gear for your next adventure. Reach out to us via our online Contact Us form. Happy trails!

Question 5

What is the front and rear length on the current version compared to the prior version?

Seymour, Arc'teryx Guest Services · Accepted Answer

Hi Neil, thanks for reaching out. For FW25, the Gamma Jacket in size M has a center back length of 73.5 cm and a center front length of 60.7 cm. The prior SS25 version in size M has a center back length of 73.0 cm and a center front length of 59.0 cm. We hope this helps!

Question 6

Is this jacket suitable for high physical output activities like nordic skiing and running?  Is there a similar jacket with pit zips?

Sophie · Accepted Answer

Hi there, thanks for your question! The Gamma Jacket is designed mainly for hiking and bouldering, but it’s versatile enough for different activities. Because it has a brushed backer that adds warmth and softness, it may feel a bit heavy during high‑intensity pursuits like running or Nordic skiing. We also noticed the product page currently lists the Gamma Jacket as having a hood, which is incorrect. Our team is updating this, and we apologize for any confusion. While we don’t offer a Gamma Jacket with pit zips, for aerobic winter activities, the Norvan Insulated Hoody is a strong option thanks to its breathability and mobility, and for running in milder conditions, the Squamish Hoody provides ultralight wind protection without excess warmth. Both of these jackets are lighter than the Gamma, as they’re built with materials specifically designed to be breathable and comfortable during high‑output activities. We hope this helps guide you toward the right jacket for your needs! https://arcteryx.com/ca/en/help/contact

Question 7

Could you provide measurements for the small sizes of the new Gamma jacket(2025) and the old version(2024)?

Seymour, Arc'teryx Guest Services · Accepted Answer

Hi Tommy, thanks for reaching out. Please find your requested measurements for the Gamma Jacket below:

Gamma Jacket (Fall-Winter 2025)
Size S
Chest Width: 111.9 cm
Center Back Length: 71.0 cm
Sleeve Length from Center Back: 89.9 cm

Gamma Jacket (Fall-Winter 2024)
Size S
Chest Width: 112.1 cm
Center Back Length: 71.2 cm
Sleeve Length from Center Back: 86.9 cm

Question 8

Men's,  183cm with 86kg, what's your recommended size?

River · Accepted Answer

Hello there, without your body measurements, it is difficult for us to recommend what size you should wear for the Gamma Jacket. We recommend that you take your body measurements such as chest, waist and hip measurements and use our sizing chart to find the size that fits you best. If your measurements are between sizes, select a larger size for a looser fit or a smaller size for a tighter fit.

Question 9

Could you provide garment measurements for the Small and Medium sizes of the new Gamma?

River · Accepted Answer

Hello Willis, we would be happy to share the measurements of the Gamma Jacket for your comparison.

Size S
Chest width: 111.9 cm
Waist width: 104.4 cm
Back length: 71.0 cm

Size M
Chest width: 119.5 cm
Waist width: 112.0 cm
Back length: 73.5 cm

Question 10

i understand the the Gamma Lightweight Jacket seems to run somewhat large.  Does the same hold true with the sizing of this jacket?

River · Accepted Answer

Hello Joe D, yes, the sizing for this Gamma Jacket follows the same fit profile as the Gamma Lightweight Jacket. Both styles feature identical measurements and are built with a regular fit, providing a silhouette that allows for comfortable layering without feeling oversized. If you found the Lightweight version ran a bit large, you'll likely experience the same fit with this model. For a more tailored feel, consider sizing down.

Gamma Jacket Men's

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Gamma Jacket Men's

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