Uses: Running
7075-T6 aluminum contour frame
Contact Sprint flexible harness
Boa® winter-proof closure system, glove-tested at -45° Celsius
Attack crampons
Tight and flexible pivot
Narrow with optimizing surface area (123 in2/794 cm2)
721: 1.75 lb / 0.74 kg, 100-220 lb / 45-100 kg
