Synthetic leather and seamless upper - Wraps and supports the foot, securing it in place.
Nike Zoom Long Jump 4 Track Spike SUPERB SUPPORT AND POWER AT TAKEOFF. The Nike Zoom Long Jump 4 Track Spike is a superior long jump spike with a lightweight, synthetic leather and seamless upper structure which wraps and supports the foot, securing it in place. This stabilisation coincides with a forefoot strap and zippered entry for a snug, secure fit and feel. At the mid-foot section key placed breathable mesh is merged under the synthetic fiber's enabling air to permeate the interior keeping the foot cool while you propel into your vault. The midsole compound of the LJ4 Long Jump Spikes is a thin, hard-density EVA wedge that is integrated for durable cushioning, support and impact protection, by reducing pressures forced upon the underfoot for a clean transition through the gait. The Midsole compound is also embedded to support the outsole's responsive 3/4-length nylon plate with 7 removable spikes. This optimizes power transfer for an exceptional takeoff and allows the toes to splay for a natural foot plant on takeoff. The 7 removable spikes provides optimal grip, no slip and powerful floor fighting traction which will help you progress into an advanced long jump and pole vault athlete.