The tifosi hagen xl sunglasses are the next generation of the wildly popular hagen with an updated over sized frame for maximum style made of grilamid tr 90 a homopolyamide nylon characterized by an extremely high alternative bending strength low density and high resistance to chemical and uv damage hydrophilic rubber ear pieces for a no slip fit tifosi hagen xl sunglasses features wrapped fullrim frame with rectangular shape lightweight and flexible grilamid tr90 frame c