My daughter used these once a week for 2-3 hours for half a year. They still seem usable. They will be shipped in a 60-size cardboard box specifically for Mercari. Thank you very much!☻ Quoted from Amazon below: Upper Material: Main body = Synthetic fiber, Reinforcement = Artificial leather Sole Material: Rubber/EVA Description "Rezoline" for beginner to intermediate players. It has the grip, cushioning, and durability required for table tennis shoes, while the last (shoe last) developed specifically for table tennis enhances the fit and provides a comfortable feel. Recommended as a choice when selecting table tennis shoes for the first time.