In Wiley-X ROMER II Interchangables Sunglasses Goggles imagination and reason came together to make this model one of the most fashionably functional sunglasses you'll ever find. WileyX ROMER II Interchangable Lens Sunglasses feature ergonomic structure cuts through wind and debris like a stealth fighter. This model of Wiley-X sunglasses incorporates Wiley X flexible Triloid nylon with optical, ground and polished, ballistic polycarbonate, and get strength without visual compromise. There's a reason why the Navy SEALS use this line of WileyX sunglasses exclusively.