Composition: 95% Polyester, 5% Elastane
Table Size Guide Swimsuit
Table Corsets and Clothing
Most products are made with fabrics requiring certain elasticity, so they are suitable for various sizes.
This size chart is indicative Corset so they can choose the size of the corset, by experience and sales size fits very well to the size you normally spend in a basic cotton shirt.
Ie if you use a size "M" shirt would also be a size "M" in corset.
The other items that are specified as one size fits normally correspond to a S / conventional M.