The Ryders aggressively styled Treviso Sunglasses feature durable Duraflex frames with high-strength, pinned hinges & sculpted temple pieces that increase frame strength without adding weight. The lenses are vented for fog-free vision & made from shatterproof polycarbonate that protects you 100% from UVA & UVB rays. & with slip-free, hydrophilic temples & nose pieces, your Ryders will stay on your face no matter how rough & sweaty things get.