Features of the Louis Garneau Men's Carbon LS-100 II Shoe RACER Fit: High-Performance Fit reduces stack height to pedal Upper: Synthetic leather with Power Zone, toe protection provides comfort and durability Closure System: Boa IP1-S micro-adjustment for a custom Fit Heel Retention: HRS-100 with 0.6 mm anti-slip membrane reduces power loss Outsole: Patented carbon composite extremely ventilated Outsole Insole: Patented COOLMAX Ergo Air insole for riding in all weather conditions Bumpers: Replaceable heel pad Safety: Reflective heel and front strap Cleats: Steel inserts Fit all major road pedals