GORE-TEX® waterproof membrane, exceptional breathability and waterproof performance Mesh and TPU upper 100% recycled laces Padded collar Protective toe cap 100% recycled mesh lining EVA foam insole with 50% recycled top sheet Removable PU foam insole Rock plate for protection FloatPro Foam™ midsole for a lightweight ride that lasts Vibram® EcoDura is 30% recycled rubber