Hayabusa Mirai Series Shin Guards Developed with Extra-Wide Foot Loops and In-Step Guard for Maximum Positional Stability and Protection. Powered by the Award-Winning, Patented Boa Closure System. Custom Comfort with Smooth Closure and No Pressure Points. Scientifically Designed to Reduce Foot Slippage Caused by Perspiration. Easy, One-Handed Micro-Adjustment Capability.