Opti-Dri technology transfers moisture away from the body to keep you cool and dry. UV Repel technology keeps skin safe from the sun's harmful rays. UPF 50. Stretch fabric moves with you to increase your range of motion. 1/4-Zip with Callaway logo rubber zipper pull. Contrast binding detail at chest and cuffs. Heat seal label provides tag-free comfort. Contrast embroidered Callaway logo on right sleeve.