Like our original sandal design, the Unshoes Forager is based on ancient footwear with contemporary design elements. This moccasin-inspired shoe is designed as a highly versatile shoe that can perform in a wide variety of situations. It features a 4mm rubber sole and a removable insert with 7mm total stack height. It is made with oil-tanned leather which is very supple, durable, flexible, and molds to the unique shape of each foot. These shoes are extremely soft, supple, and lightweight which makes them some of the most comfortable and minimal shoes out there!As always, our shoes are flexible, zero-drop, have a foot-shaped toe box, and are made in the USA. The leather has a short break-in period, so it is ok if they are a little snug when you first put them on. Leather is an extremely flexible and pliable material and will relax and stretch some with wear. Gently used, pre-loved item. No significant flaws. Slight scuffing, scratches & typical wear in places as to be expected with normal use.