experience futuristic comfort with the Terrex Free Hiker GORe-TeX. Featuring adidas Primeknit, the adaptive upper fits like a sock, with a knit ankle cuff that seals out dirt and debris. Backed with waterproof GORe-TeX and enhanced with abrasion-resistant reinforcements, all-weather performance is assured. For comfort, no matter the distance, the Boost midsole gives endless energy to power you through, complete with a Continental rubber sole for optimal grip on uneven ground.