1. Internal breathable mesh, comfortable and not stuffy
2. Easy to wear, not tight
3. The bust can be adjusted appropriately, easy to use
4. Thick nylon webbing grip, firm and not easy to break
5. Material: cotton fiber+EVA+mesh cloth
6. Size: XS/S/M/L/XL
7. Weight: XS is about 120 grams, S is about 150 grams, M is about 180 grams, L is about 200 grams, and XL is about 220 grams