Protect yourself from the harmful rays of the sun and stay cool at the same time. Made from Coolmax Extreme fabric the Buff UVX Mask blocks 95% of harmful UV radiation. Anti-bacterial, Anti-odor Polygiene technology. Pull the contoured UVX Mask up over the back of your head (and hat if you'd like) to protect the neck, ears, and head from sunburn. UVX products can be tucked in or worn outside the shirt-either way protecting the shoulders and upper chest from exposure to the sun. Breathing holes provide breathability and prevents sunglass fog up and durable flatlock seams are soft on the skin. Shaped eye area for optimal fit and gusseted shoulders for contoured coverage. Increased length protects neck base, shoulders, chest, and back. In bonefish. One size fits most. Polyester. Washable. Imported.