- Upper: Reinforced synthetic with rigid bumpers – tough, supportive, and impact-resistant- Closure: SIDI dial system + tension strap – precise and secure fit that holds under pressure- Ankle Protection: D3O® protector – flexible, low-profile design that stiffens on impact- Outsole: Materiis rubber sole – high-grip compound with damping structure for landings and control- Fit System: Internal reinforcement for lateral support without restricting movement- Usage: Flat pedal optimized – ideal for gravity, trail, and park riding fit 1 2 3 4 5 6 7 8 9 10 recreational performance stiffness 5 6 7 8 9 10 11 12 min max