Hiking or trail running, the Adidas women's Terrex Fast R Mid GTX mid-cut lightweight shoes deliver ultimate comfort while in motion. This shoe comes equipped with a Gore-Tex membrane, Formotion technology for enhanced motion control and Adiprene cushioning for added comfort.. Adidas . . Synthetic uppers. Gore-Tex lining. Neoprene collar. Molded Ortholite sockliners. Neoprene collar. Mid-cut. Formotion for better comfort while in motion. Full forefoot Adiprene+ cushioning. Continental rubber outsoles. Imported.