Wiley X Echo features the patented removable Facial Cavity™ foam seal to block out wind, light, dust and debris for a secure fit at high speeds and protection from hazards. Shatterproof lenses block 100% of UV rays. Symmetrical venting allows cool air to enter frame naturally. Temple strap and semi-hard case included. Exceeds ANSI Z87.1-2010+ high velocity safety standard. Meets US military specifications as combat protective eyewear.