The classic details of Adidas Boost running shoes, but beefed up for speedy long-distance hikes or high-mountain runs. Lightweight knit uppers have abrasion-resistant reinforcements and a toe cap to protect high-wear areas. Boost midsole foam absorbs trail shocks and provides high energy-return to keep you moving. Primeknit textile upper hugs your foot for a sock-like, snug feel. Moulded toe cap protects shoe and your toes. TPU film around heel holds foot securely in place. Boost foam midsole cushions underfoot. Torsion bar stabilizes on uneven terrain and encourages natural flex of the foot. Continental Rubber provides secure footing, even in wet terrain.