Alpha 90 1/2-Zip Mock Neck

Breathable: Allows moisture vapor to escape, keeping the wearer dry.
Lightweight: Provides warmth without added bulk.
Thermal Efficiency: Traps air for insulation in cold conditions.
Quick-Drying: Hydrophobic, moisture-wicking, and fast-drying properties.
Versatile: Ideal for base and mid-layers in cold-weather.

Polartec Alpha Direct 90. Our best selling, most-versatible midlayer fabric.

Popular with day hikers, runners, and thru-hikers. Warm enough alone, and pairs well with a wind or rain shell for extra warmth.

5oz for a Wide Medium

This is a delicate fabric and must be treated as such! It will snag easily, so keep it away from Velcro, dog claws, and definitely don’t bushwhack in it!