Unused, new item. Regarding the size, for kids, it should fit around a 22.5cm sneaker size, and should be fine with socks on. For women, a foot size of 22.5-23.5cm is recommended. Please feel free to ask if you have any questions about the size. ^_^ It's suitable for regular gym training, or you can choose a slightly larger size for lead climbing or multi-pitch climbing. It's an older model, but I think it's a hidden gem. It's a great deal if the size fits!