Description from site: High-abrasion mesh uppers offer durability and breathability; TPU toe caps help protect toes from trail debris Mesh tongues with EVA tongue tops enhance comfort; breathable sandwich mesh linings keep your feet cool Bungees stow your laces to help avoid tangling Lightweight EVA midsoles provide long-lasting cushioning Pro-Moderator medial and lateral support adds extra stability to the midsoles Stealth® rubber outsoles offer reliable grip My take: very grippy, lightweight, and great! They are too big for me only worn a handle full of times.