Nike Air Zoom Terra Kiger 6 Trail Running Trainers Shoes 。Nike React technology delivers a soft, responsive ride. A Zoom Air unit in the heel provides extra cushioning. Lightweight mesh in the forefoot enhances ventilation. A woven heel provides a secure, supportive fit. A padded tongue helps reduce pressure from foot swelling during long runs. A segmented rock plate in the forefoot helps protect your foot from challenging terrain without sacrificing flexibility or ground feel. A lacing system around the midfoot helps provide a secure, supportive fit. Weight: 291 g (Men\'s size 44) Heel-toe drop: 4 mm (Forefoot: 10.5 mm, Heel: 14.5 mm) Upper made of synthetic leather and textile materials.