Rubber sole Continental Rubber outsole for extraordinary grip even in wet conditions; GORE-TEX lining for waterproof, breathable performance Hugs the foot Move and explore. These lightweight hiking shoes deliver next-generation comfort and freedom of movement for hikes both long and short. The adidas Primeknit upper hugs your foot for flexible, all-terrain stability, while the Boost midsole delivers endless energy to keep you moving up or down the trail. A GORE-TEX membrane sheds water while letting your feet breathe for all-conditions wear.