Made with high-performance UA materials designed to be worn all day when playing sports. Structured design sits up off the face lips for added comfort breath ability 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...