Gaerne Fastback Enduro Motocross Boots - BlackGaerne Fastback Endurance Motocross Boots Gaerne's wrap around ankle pivot design delivers fore and aft flexibility while maintaining a high degree of protection. The top of the boot is very expandable to accommodate a wide variety of knee braces and calf sizes. A heavy duty shank provides arch support, working in concert with Gaernes trademark dual composite anti shock sole. Features: Single stage ankle pivot Inner thermal shield Adjustable to