HEAD and NECK PROTECTION-Pullover design and tail that completely cover the head, neck, and ears for ultimate sun protection SWEAT STOPPING SKULL CAP-Patented SweatSeal channels sweat back and away from the eyes, face, and glasses; no more burning sweat in your eyes! CERTIFIED SUN PROTECTION-The lightweight tail is a double layer of mesh fabric providing 50+ UPF sun protection (tested and certified) YEAR ROUND COMFORT-4-way stretch micro-mesh top releases heat while the Dryline fabric absorbs, wicks, and quickly evaporates moistur ONE SIZE fits both men and women; will not lose shape, form, or stretch out