Guc pfsf they have fade to the black rubber toe material The Salewa Alp Trainer Mid GTX Women's Hiking Boot gives you the precision and grip of an approach shoe, thanks to its tough rubber rand, super-sticky Vibram Hike Approach sole, and to-the-toe lacing, so you'll be able to make short work of the technical trails and alpine scrambles that are typical of most high-mountain hikes. The Alp Trainer is a killer boot when you're in the forested, grassy, and marshy parts of your hike with a flexible suede-and-PU upper that's lined with a Gore-Tex Extended Comfort waterproof and breathable membrane to make braving rain storms, spring mud, and marshy spots as easy as eating lunch on a breezy summit. 3F flexible support system, which provides great stability while allowing your foot and ankle to move freely and efficiently.