The FloatPro Foam midsole is super lightweight offering maximum cushioning and making the shoe ideal for fast hiking too.  GORE-TEX waterproof membrane, exceptional breathability and waterproof performance Mesh and TPU upper Padded collar Protective toe cap  EVA foam insoleRemovable PU foam insole Rock plate for protection FloatPro Foam midsole for a lightweight ride that lasts New Vibram Traction Lug outsole design for added traction and stability Vibram Ecostep soleStack Height: 31-21mm Drop: 10mm Lug: 4mm 1lbs-6oz, 600g