Purchased new about 10 years ago and worn approximately 5 times in the winter mountains during the coldest periods. It's an older item, but overall in good condition. The soles show no wear as they were primarily used with crampons. There is a crease in one of the insoles. It can still be used without any problems. Feel free to ask if you have any questions. The following is an excerpt from the official product description: A versatile, insulated winter boot suitable for all types of winter mountaineering. The upper is made of durable Schoeller Keprotec and designed to be lightweight, taking advantage of the characteristics of synthetic boots. Features such as a flexible ankle design that does not restrict bending are incorporated to ensure comfort. Gore-Tex Insulated Comfort is used to maximize the breathability of Gore-Tex fabric. Compatible with both step-in and semi-automatic crampons. Specifications 【Materials】 ■ Upper: Schoeller Keprotec (water-repellent) + Microfiber ■ Lining: Gore-Tex Insulated Comfort ■ Sole: Vibram® Vertical 【Weight】910g (K8.0, one foot) 【Color】Black (BK) 【Sizes】K6.5, K7.0, K7.5, K8.0, K8.5, K9.0, K9.5 (UK sizes in 0.5 increments) 【Width (Foot Circumference)】Regular 【Features】Vibram® sole, resoleable 【Other】Compatible with step-in crampons