The SG-10 is a Premium boot, the kind of boot that real racers wear. Dual composite rubber soles, lightweight alloy, replaceable buckle system, exclusive GAERNE �Grip Guard�, floating �Razorback� with a built in ankle alignment system, supercross shank as well as a heel bumper and memory cell PU inner foam liner that completes the construction for an unforgettable fit. Compare the features and you will see why GAERNE is leading the way!