Black Diamond Alpenglow Long Sleeve Crew - Men's Tundra Medium. Featuring UPF 50+ and BD.cool mineral based in-fiber cooling technology this fabric reflects 71percent of near-infrared rays and reduces the wearers temperature. A layer of protection to your arsenal with a pullover design plus Polygiene odor control the Alpenglow hoody offers the ultimate in performance and long-wearing comfort. Specifications for Black Diamond Alpenglow Long Sleeve Crew - Men's: Manufacturer: Black Diamond Age Group: Adults Apparel Fit: Regular Gender: Male Application: Casual Fabric/Material: 87percent Polyester 13percent Elastane Weight: 245 g Features of Black Diamond Alpenglow Long Sleeve Crew - Men's UPF 50+ sun protection BD CoolTM mineral-based in-fiber cooling technology Underam gussets for improved range of motion Polygiene Odor Control Treatment Package Contents: Black Diamond Alpenglow Long Sleeve Crew - Men's Black Diamond AP7520923010MED1: Alpenglow Long Sleeve Crew - Men's Tundra Medium