Cutter & Buck DryTec Cotton+ 35UPF fabrication delivers a soft hand with a touch of stretch and moisture-wicking style that make this an instant wardrobe staple. Our unique blend of 55% cotton, 42% polyester, and 3% spandex provides maximum versatility for your active lifestyle. UV protection of 35+ UPF. Ribbed Collar. Three-button placket with diagonal stitch.