Design: Engineered mesh for a good breathability and support made from 100% recycled polyesterThe rounded edges and Carbon shank speedboard limit the shoe torsion and increase energy return during side cut movementsTPU insert on the medial side (with R. logo) to extend the foot bed enhance the stability and improve the precision100% carbon fiber Speedboard® for maximum energy returnDurability & Traction: Outsole hard foam of 75C to absorb heel impact along with a contact surface for abrasion resistanceMedial and lateral side, the contact surface is higher for abrasion resistance where as the center part pattern is more aggressive for tractionAdditional Details:Heel to toe drop: 10mmWeight 12.9 oz