Design: Optivibe™ foam and cushioning: Absorbs vibrations and decreases muscle fatigue without weighing yow down Profeel film: Protects your feet from sharp objects Durability & Traction: Upper made of resistant fabrics and anti-debri mesh: Provides durability on the trails Precise foothold, especially around the heel: Keeps you locked in Full rubber Contragrip® outsole: Provides superior grip