Easy Movement - Wider cut through the chest and wider sleeves for increased comfort and flexibility. Made To Last - Quality craftsmanship with reinforced stress points for longevity with daily wear. Durable Material - A comfortable blend of polyester and cotton pre-tested for strength and durability. Cool Vent Back Yoke - Award- winning fabric technology that wicks moisture and heat. Added Features - Left chest patch pocket, left sleeve thermometer pocket, and cloth covered buttons.