M's R1 Air Zip Neck - 40246 - Summit Blue PACKS N BAGS and it can double as

and it can double as a hydration sleeve

and it's Fair Trade Certified sewn

your ultimate companion for outdoor adventures

• Full Center-Front Zip with Wind Flap

100% jersey-knit cotton

M's R1 Air Zip Neck - 40246 - Summit Blue PACKS N BAGS and it can double asEngineered for active pursuits, the M's R1 Air Zip Neck delivers lightweight warmth without bulk. The breathable fabric wicks moisture and regulates temperature across changing conditions, making it ideal for layering under jackets or wearing solo during moderate activity. The half zip design offers quick ventilation control, while the fitted cut ensures freedom of movement. Perfect for trail running, climbing, or everyday performance wear.