Arcteryx Alpha FL 40 Arcteryx Beta AR Jacket Articulated patterning allows for unrestricted

Articulated patterning allows for unrestricted mobility during dynamic activities

Also there are two zipped hand pockets and an adjustable hem to keep it in place

The helmet compatible StormHood has great adjustment

This is a good choice for running or for any high aerobic activity

0 stretch softshell fabric

Arcteryx Alpha FL 40 Arcteryx Beta AR Jacket Articulated patterning allows for unrestrictedThe Arcteryx Alpha FL 40 is a great minimalist 30 litre pack for fast and light use in the mountains, ideal whether you're rock climbing, alpine climbing or ski mountaineering. It's very light for a pack of it's size, yet don't let this deceive you the 315 Denier HADRON AC Nylon is super, super tough. The pack has a simple Roll Top closure, which when fully extended gives the pack additional capacity up to 37 litres. The 315D HADRON AC2 Nylon is