XC100 Women'sPERFORMANCE XC MTB SHOE WITH SHIMANO QUALITY AND DESIGN. 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