Sz 11 US Men’s Excellent condition Smoke Free home Tackle new terrain in VivoBarefoot's Primus Trail Knit FG trail running shoes, made from lightweight and breathable knit mesh with a grippy synthetic outsole to keep you stepping confidently and comfortably.Every design element of a VivoBarefoot shoe supports the stimulation of "proprioception," which is the body's natural sense of its own position, balance and movement Pure Barefoot Technology allows the body to provide natural shock absorption, motion control and sensory feedback via a wide toe box, ample flexibility and a patented, puncture-resistant outsoleBreathable knit mesh upper and lining with supportive textile overlaysSpeed lacingRemovable cushioned insoleShaped like a foot with a flexible design for natural movement FirmGround rubber outsole for grip on a variety of terrain Made in VietnamUpper: Textile with synthetic overlaysLining: TextileOutsole: Synthetic