Endura mt500 waterproof pants the mt500 waterproof pants are made from waterproof breathable fabric with fully sealed seams and a durable cordura seat panel for a comfortable fit in poor weather features material 98 nylon 2 elastane 25l waterproof breathable fabric fully seam sealed stretch waterproof panels durable seat in cordura reflective logos clickfast compatiblebuy endura clothing from chain reaction cycles the worlds largest online bike store