When health officials said healthy people should wear facemasks, we started building prototypes until we made the perfect one for athletes. It's got the airflow you need, a cool feel, and the best fit for running or training. Structured design sits up off the face & lips for added comfort & breathability. Water-resistant outer shell features smooth, breathable spacer fabric. Anti-microbial treatment on the inside layer to help keep mask fresh. Polyurethane open-cell foam lets air through but makes it hard for moisture & sweat to pass. UA Iso-Chill fabric on interior lining & ear loops feels cool to the touch for as long as you wear it. Fabric is soft & smooth for next to face comfort & moves moisture from your mouth to the insert layer. Lining fabric extends up & is strategically shaped to lay flat across the bridge of your nose. Built-in UPF 50+ sun protection. Includes washable, anti-microbial carrying pouch with locker tag to mark your name or number. Outer layer: 100% Polyester | Insert: 100% Polyurethane | Interior/ear loops: 77% Nylon/23% Spandex. Hand wash & lay flat to dry. SALES FINAL.