Many stores that carry ZeroXposur items provide only general size charts that apply to the item sold. For example, a store that sells ZeroXposur jackets may provide a size chart that generally applies to all winter jackets, but not the ZeroXposur brand in particular.
JCPenney only provides general size charts for their ZeroXposur winter coats, but they provide an exact ZeroXposur size chart for ZeroXposur swimwear. Kohl's provides only general size charts and includes the caveat that their general size chart may include sizes that are not available in the specific ZeroXposur item being sold. Amazon provides product dimensions, but does not offer a size chart. Taking measurements and comparing them to the general size chart would be the best way for a buyer to make sure that they are buying an item that will actually fit.