Material: cloth Category: chest strap Specifications: S: Bust 20-40cm, M: Bust 36-50cm, L: Bust 46-64cm 1. Asian size is 1 to 2 yards smaller than Europeans and Americans. If the size is between the two sizes, choose a larger size. Due to manual measurements, please allow a difference of 2-3 cm. 2. Please check the size chart carefully before purchasing. If you don't know how to choose the size, please contact our customer service. 3. As you know, different computers display colors in different ways, and the actual project color may look slightly different from the image below.