





Details & care
From sunrise approaches to hiking in the full sun, this cap is made for all your mountain activities. The stretchy softshell fabric is breathable, lightweight and finished with a durable water repellent treatment so you stay covered on sunny days and unexpected showers.
- Adjustable back strap
- Durable water-repellent (DWR) finish
- 86% recycled nylon, 14% elastane
- Machine wash, line dry
- Imported
- Item #11256078
Helpful info:
Size info
- One size fits most.
Shipping & returns
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Arc'teryx
With a name inspired by the first reptile to sprout feathers for flight, it's no surprise Arc'teryx is all about creating outdoor clothing and gear that allow users to perform at the point of extreme need. Its innovative, highly technical outerwear protects against the elements while ensuring ease of motion for an optimal outdoor experience.
Most helpful positive review
May 19, 2026
Light stretchy fit is adjustable super comfortable
Super great hat! Light breaths well, super light fits perfectly. Great hat for hiking, or just plain looking cool đŹđ
Cuds
Reposted from arcteryx.com
Most helpful critical review
Dec 5, 2025
Loosing its elasticity: becomes too large
I really liked this cap at first, but over time it became too large, and the adjustment strap went completely slack even at its tightest setting. The stretchy softshell fabric lost its elasticity, and the adjustment band at the back did the same. Now I canât wear it when itâs even slightly windyâIâve had to chase after it many times! Thereâs no adjustment left, and the strap is always sticking out, which bothers me because it constantly touches the back of my neck. That ribbon should never have been made from a stretch material that loses its elasticity.
BenoĂźt
Reposted from arcteryx.com
arcteryx.com response
Hello BenoĂźt, thank you for sharing your experience with the Gamma 5 Panel Cap. Weâre glad to hear it was a good fit at first, but weâre sorry that the adjustment strap and softshell fabric lost their elasticity over time, making the cap uncomfortable and less functional in windy conditions. We understand how frustrating it is when design details like the back strap donât hold up, especially when they affect both comfort and usability. Your feedback about the choice of materials and the strap design is valuable, and weâll ensure itâs passed along to our product team as we continue to refine future iterations.
5 stars
75%
4 stars
0%
3 stars
15%
2 stars
5%
1 star
5%
Sort by Most Helpful
Size
Color
Cuds
Reposted from arcteryx.com
May 19, 2026
Light stretchy fit is adjustable super comfortable
Super great hat! Light breaths well, super light fits perfectly. Great hat for hiking, or just plain looking cool đŹđ
Adam
Reposted from arcteryx.com
May 19, 2026
Awesome hat
Love everything about this hat, got 4 in different colors. Hope they never stop making them!
Mags
Reposted from arcteryx.com
May 18, 2026
Not as good as the calidum
This hat is very similar to the calidum 5 panel, which is my favorite but discontinued. My only gripe is the stitching on the inner sweat band is scratchy and tends to itch, which wasnât an issue on the calidum.
arcteryx.com response
Hello Mags, thank you for sharing your experience with the Gamma 5 Panel Cap. Weâre glad to hear it fills a similar niche to your Calidum, but weâre sorry the inner sweatband stitching isnât as comfortable for you. That kind of irritation can really take away from an otherwise great fit, and your note about the difference between the two designs is helpful. Weâll be sharing your feedback with our product design and development teams as they continue to refine materials and construction details in future versions.
Enlightken
Reposted from arcteryx.com
May 3, 2026
Nice fit, light and comfy!
I love these hats, but I am looking for other color choices like brown or olive. Please let me know if you plan on launching other colors.
Only downside of this hat is that you cannot really wash or clean it.
Thx
msjfh
Reposted from arcteryx.com
Mar 19, 2026
Unreflective image color
I ordered the light purple cap, super comfortable and breathable hat however, the color is GREY not lavender at all.
arcteryx.com response
Hello there, thank you for sharing your thoughts on the Gamma 5 Panel Cap. Itâs great to hear that the comfort and breathability are working well for you. At the same time, itâs completely understandable to feel surprised when the color doesnât match what you expected, especially when ordering a specific shade like light purple. The note about it appearing more grey is genuinely appreciated and will be shared with the team, as accurate color representation is important for helping guests choose the right piece. Your feedback truly helps us improve.
Ivolino
Reposted from arcteryx.com
Jan 21, 2026
Gamma cap in pink please
I love the Gamma cap I only wish it would be available in a strong shining pink to be maximum visible.
Outfit Ideas For This Item
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- Outfit idea created by nordstromstyling.Created by nordstromstyling
- Outfit idea created by nordstromstyling.Created by nordstromstyling
- Outfit idea created by nordstromstyling.Created by nordstromstyling





























