The Men's KUHL Ryzer Quarter Zip is a base layer for cool to cold weather activity. Hikers, skiers, and beyond, when you're outdoors, layer up with a breathable, moisture-wicking piece that keeps you warm and comfortable throughout the day. Thumbholes keep the sleeves in place when adding layers on top, while the quarter zip makes it easy to adjust temperature along the way. With a little stretch built into the fabric, your movement remains unrestricted and natural.