Ripstop fabric protects against tearing and ripping, with a seamless construction for a clean, sporty look Gore-Tex membrane for 100% waterproof and windproof protection to keep you dry and comfortable OrthoLite UltraLite insole offers lightweight, high-performance comfort BIOM technology encourages your foot to move more naturally and efficiently, and has an anatomical fit, plus a low profile that lets you feel connected to the trails Flexible, lightweight sole allows for optimal natural movement, with soft and ultra-light Phorene in the midsole delivering energy return and bounce.