These are lightweight and breathable trekking shoes. As they are the current model, please check the Montbell website for details. I bought them last month and wore them for about two weeks for everyday use, but they were a little small, so I'm selling them. I haven't used them for mountain climbing. I washed the entire shoes thoroughly, but some dirt didn't come off completely. However, I think the overall condition is good. Please consider this item, understanding that it is a used product. I will ship them in a box. - Brand: mont-bell - Model Name: 1129707 Trail Flyer - Size: 23.5cm (US6.5, EUR37.5, UK4.5) - Color: Dark Gray - Purchase Price: 16,500 yen