Exclusive XC4 waterproof performance and comfort Breathable, waterproof bootie construction with neoprene collar Waterproof-infused leathers Dual width removable footbed to accommodate a custom orthotic or wide foot Moisture-wicking textile linings Multi-density footbed with memory-foam cushioning, contoured arch support and a soft sheepskin/moisture-wicking textile covering Polyurethane outsole with full-length, lightweight EVA midsole