For lifting and training versatility. Unrivalled grip: ROPE-TEC system delivers traction and durability on rope climbs. STICKY GRIP rubber outsole delivers outstanding underfoot grip for every workout. Phenomenal grip: New industry-leading StickyGrip rubber delivers over 50% better traction in the forefoot than its predecessor. Agility: Next generation META-FLEX technology and optimal multi-directional flexibility moves with the foot, both forward and laterally. Explosive power: The POWERHEEL is 40% denser than the forefoot of the shoe. Combined with a 8mm drop (heel-to-toe differential), the POWERHEEL provides maximum power and mechanical advantage when lifting weights.