From Bionica: these Romulus leather booties lace up for the perfect fit. And, the Freefit construction and MaxumLite slip-resistant outsole provide all-day comfort. Boucle fabric collar; lace-up style; lightweight, flexible design Freefit construction with ultra-lightweight foam cushion padding, MaxumLite slip-resistant outsole with arch support and toe bar Leather upper; man-made outsole Please note: the fit on these are a bit snug. They’re 6.5 but would fit a 6 best. Never worn