WARNING! This product will melt when exposed to extreme heat or open flames, posing a risk of serious injury where melted product comes into contact with skin!. Smooth anti-pick, anti-pill fabric maximizes comfort and has a cleaner, snag-free finish. Signature Moisture Transport System wicks sweat away from the body. Anti-Odor technology prevents the growth of odor causing microbes. Smooth, chafe-free flatlock seam construction. 4.5 oz. Polyester. Imported.