2.9 oz 100% polyester woven windwear fabric. Repel fabric resists wind and water to protect you against inclement weather. Stretch fabric insets move with you to increase your range of motion with polyester/spandex fabric placed at elbows and back shoulders. Tunnel sleeves with polyester/spandex cuffs and adjustable velcro closure. 1/4-zip jacket with Callaway logo rubber zipper pull. Front zippered chest pocket with Callaway logo rubber zipper pull. Open hem with drawcord and toggle. Heat seal label provides tag-free comfort. Contrast Callaway logo heat seal on right sleeve.