I purchased these for my first mountain climb. I wore them for about 3 hours and have stored them in a dark place. There is some minor dirt, but I've only used them once. I threw away the box. It was my first time wearing hiking boots, but they were very easy to walk in and comfortable, making it difficult to get tired. 【Product Description】 A premium entry hiking boot that follows the design of KEEN's long-selling trekking shoe, TARGHEE, and employs the highest-grade manufacturing process for superior durability. A multi-purpose hiking boot equipped with a newly designed sole unit that exhibits high rigidity in the field. Suitable for hiking, long walks, rain shoes, and daily use. UPPER: The upper features specially processed waterproof leather and lightweight, breathable performance mesh. OUTSOLE: TPR outsole that leaves no trace and exhibits high slip resistance, 4mm lug pattern that provides excellent traction in all directions. MIDSOLE: TPR midsole with excellent cushioning and recyclability, LUFTCORE technology, which embeds a lightweight core filled with air into high-density foam, improves the cushioning of the midsole. LINING: Quick-drying lining that is comfortable even when moving. FOOTBED: A LUFTCELL PU (polyurethane) footbed that is three-dimensionally molded to fit the shape of the foot and does not collapse under weight. 【Size】 US6.5/UK4/EU37/Japan 23.5cm