Perforated synthetic leather composite upper enables superior fit and breathability. Three durable hook & loop straps evenly spread tightening force across the top of the foot. Offset strap relieves tension at highest point of the foot. Surround wrapping upper structure reduces overlap and provides a glove-like fit. Lightweight glass fiber reinforced nylon sole for power transfer. Rubber XC racing pattern outsole promotes stable pedal engagement and secure walking grip. Weight: 334 g.