UPF 50+ protection meets Realtree XTRA® Camo. The result? The most comfortable, virtually invisible sun protection for hunting and fishing. ActiveIce technology uses xylitol crystals to actually cool you as the fabric wicks away sweat, while UPF 50+ fabric fends of the sun's rays. A thumb hole, finger loop and bicep grip keep them in place if only we could say the same thing about your target.