Upper Made from 100% recycled polyester, the upper features a two-tone PFAs-free waterproof membrane with a tighter-structured mesh on the saddle for improved durability. Speedboard The Speedboard is engineered for optimal all-day performance, torsional support and stability – stable landings, soft toe-offs. Midsole / outsole The midsole is 50% bio-attributed, reducing the bottom unit’s CO2 footprint by 20%. An updated outsole features connected rubber pods for better traction, grip and durability.