Embossed ASYMMETRIC FLEX-CUFF functions with The Pump ankle bladders to maximize comfort Full-length comfort foam and lightweight HD molded foam saddle lace-bite guard combined with a foam-felt tongue maximize comfort and forward flex CLARINO charcoal liner provides pro proven comfort and durability Comfort foam covers entire length of foot (inside and outside) MAX ARMOUR PRO with pro-embossed package provides protection and durability F-I-T-SYSTEM footbed provides excellent fit and comfort New CustomLite cowling features a lightweight ProProfile, Moisture Exhaust Vents, Butterfly Toe Shield, TriLites and the first ever Replaceable Runner Proformance Stainless R30 runner delivers freedom of movement and long lasting edge