Pro level features, perfect for the club and recreational cyclists,High-density synthetic leather with perforations improves fit and breathability,Super low-profile, reverse mount buckle securely holds foot,Off-set Strap relieves tension at highest point of the foot,Supple padded tongue feels great on the foot and adds to the all day comfort,Lightweight glass fibre reinforced nylon sole for efficient power transfer,SPD-SL cleat compatible fixings,Sole stiffness 6,Weight: 522g a pair (size 42).