Crank Brothers Stamp Speedlace Flat Shoes - US 8.5 - Green - Orange - Black Heavy/Bulky It features a cutout for

It features a cutout for pressure relief

with 4 brow ports sucking it all in at the front as well

Grippy heel and toe siping with mud flow channels

the chamber will have to reach the same pressure the tire/tube is at first before it will begin to inflate it further

Crank Brothers Stamp Speedlace Flat Shoes - US 8.5 - Green - Orange - Black Heavy/Bulky It features a cutout forSome things just work better together. Like an optimised shoe pedal combination. The Stamp flat shoe does it all, whether on the street or trail. Its high friction outsole rubber compound provides optimal grip to stick to the pedals and the lug depth is designed around pin dimensions to absorb the pin to ensure a secure pedal connection. Riding Style: Designed for gravity fed riding such as DH and Enduro racing. Closure System: Speed lace closure