The last is built off the TX4 Mid GTX, with a +2 size extension to account for use with neoprene socks
Eco materials come from recycled raw materials including PFC-free coating, recycled laces and an EVA midsole with 7% recycled contents - all contributing to a reduced environmental impact
The Ariaprene upper is a toxic-free laminated package with a synthetic foam core and biodegradable properties (closed loop scrap recycling)
Rounded perimeter and heel keeps the shoe from being pinched between rocks
Balanced outsole with climbing zone platform, deep lugs, flat tread and trail-bite heel for optimal performance
