Buff has become synonymous with multi-functional headwear that protects us from both heat and cold. Pretty much anyone who recreates outdoors has used a Buff at one point or another. As most of us now want to cover up more in the sun to protect our skin from harmful rays, the company gets set to release a set of UV arm sleeves and a series of caps to give runners, hikers, backpackers, and even cyclists a little more coverage while also keeping you cool.