Brunello Cucinelli BC Couple's New Series Boken Slippers This sandal and slipper style is classic and will never go out of style! The personalized logo and unique water ripple groove design on the outsole make it instantly luxurious! Wear it so you don’t have to change your shoes this summer! Upper: original sheep velvet/cow leather material. Inner lining: comfortable and breathable cow leather lining cashmere pad. Outsole: original injection molded foam sole. Size: 36-45 (female size 40, male size 45 customized),