Light, packable, highly versatile GORE-TEX PRO shell with hybrid construction.
Beta Series: All-round mountain apparel. | AR: All Round.
Packable, breathable, durable waterproof protection across the spectrum of alpine environments and activities, the Beta AR Jacket is created to deliver performance versatility. The GORE-TEX PRO with Most Rugged Technology - a next-gen material we developed in collaboration with Gore - delivers maximum durability. The helmet compatible DropHood™ has an internal collar for added protection and an embedded RECCO® reflector improves searchability in emergency situations.
Arcteryx Men's Shirts/Jackets
All Measurements are in Inches
Size | Sleeve | Chest | Waist | Hip |
XXS | 31 | 341/2 | 28 | 331/2 |
XS | 32 | 36 | 30 | 351/2 |
S | 33 | 38 | 32 | 371/2 |
M | 34 | 40 | 34 | 391/2 |
L | 35 | 431/2 | 37 | 421/2 |
XL | 36 | 461/2 | 40 | 451/2 |
XXL | 37 | 501/2 | 44 | 491/2 |
3XL | 371/2 | 541/2 | 501/2 | 56 |
Light, packable, highly versatile GORE-TEX PRO shell with hybrid construction.
Beta Series: All-round mountain apparel. | AR: All Round.
Packable, breathable, durable waterproof protection across the spectrum of alpine environments and activities, the Beta AR Jacket is created to deliver performance versatility. The GORE-TEX PRO with Most Rugged Technology - a next-gen material we developed in collaboration with Gore - delivers maximum durability. The helmet compatible DropHood™ has an internal collar for added protection and an embedded RECCO® reflector improves searchability in emergency situations.
Arcteryx Men's Shirts/Jackets
All Measurements are in Inches
Size | Sleeve | Chest | Waist | Hip |
XXS | 31 | 341/2 | 28 | 331/2 |
XS | 32 | 36 | 30 | 351/2 |
S | 33 | 38 | 32 | 371/2 |
M | 34 | 40 | 34 | 391/2 |
L | 35 | 431/2 | 37 | 421/2 |
XL | 36 | 461/2 | 40 | 451/2 |
XXL | 37 | 501/2 | 44 | 491/2 |
3XL | 371/2 | 541/2 | 501/2 | 56 |

Guide Pick
RMI Expeditions Guide
,How Guide Pick™ Works

The guides over at RMI collectively spend over 10,000+ days a year on the world's highest mountains, climbing hundreds of thousands of vertical feet. They put their gear and apparel through the wringer. This stuff is their work wear and they simply will not tolerate inferior gear.

At the end of the climbing season, guides are given a survey to find out what gear they are using and why it is their favorite. We don’t often get complete agreement but we do get alignment and by looking at the data, a few clear winners rise to the top in each category.

We take those winners, and stamp them with the Guide Pick™ logo on our site. We also compile this wonderful little document, which you can use to see top contenders, gear advice, Guide Quotes, and more.