The Women's BugsAway® Mayfly Long-Sleeve Shirt is made for adventure, whether that means exploring caves and trails or your first fly-fishing attempt. The lightweight, quick-drying, and moisture-wicking fabric will keep you comfortable, while the built-in, bug-blocking Insect Shield® treatment gives you the invisible, odorless protection of Permethrin that lasts up to 70 washes. Cast your first line in comfort, thanks to the stretch side panel, back yoke, and cuffs. Drain holes at the VELCRO®-closure chest pockets mean water can't collect, while the chamois patch at the inside placket makes it easy to keep your sunglasses clean. This UPF 30 rating helps block the sun's harmful rays.