Featuring a unique zigzag knit that traps warm air while moving moisture away for quick evaporation the Patagonia R1 Air Men's Full-Zip Hoody is a 100% recycled polyester jacquard fleece designed to wick moisture and dry quickly so prevent that damp chilling effect during high-output cold weather sports. There are wardrobe essentials for winter fun.. the insulator, the shell, the baselayer… and this. This is the layer for autumn when you need more than a long sleeve shirt but less than an insulator, and the layer for making tracks, whether you’re on a fat bike or fat skis. Bitter day? This fits between your baselayer and your insulator for extra core protection against the cold. With off-shoulder seaming for pack strap comfort, low profile zippers for comfortable layering, and a slim fit hood for layering under helmets this is designed to be your go-to layer any time you’re suiting up and heading out the door intending to hit the ground running and need to manage heat in the cold so you stay comfortable.