What's better than ripping down the mountain, your riding absolutely on point? Staying plenty cool while doing it. Our new Trail Air Short Sleeve jersey uses VaporRize, a super-lightweight, breathable fabric, that keeps you cool while feeling comfortable against your skin and protecting you from ultraviolet rays and trailside foliage. - Crew neck collar keeps things casual and comfortable. - Deflect UV 30 protects your skin from harmful, ultraviolet rays. - Fabric Content: Knit 87% Polyester, 13% Spandex - VaporRize fabric is made from our most breathable, lightweight fabric that uses a Recycled Polyester blend to create its superior wicking ability. - Women's-Specific Regular Mountain Bike Fit is generous and comfortable.