Tecnica Men's Viper Low TCY Waterproof Trail Runner 100% Leather and textile Rubber sole Tecnidry provides waterproof performance with all day comfort Oversized rolling zone provides progressive and uniform energy transfer and eliminates dead spots Tecnigrip rubber composite and rolling spine Ortholite footbeds provide superior cushioning with step-in dynamic comfort durability and anti-microbial T-Cube Cushioning is triple density composite cushioning optimizes performance