Based on your measurements, this will determine your size for all of our products.  If you need help finding your measurements, please see below and you will find our model diagram to show you how and where to find accurate measurements.

As a general rule:

Slim Fit: This garment will fit very close to the body and hug your curves. Good to wear as bottom layer. For a more regular fit, buy one size larger.
Fitted Fit: This garment will follow curvature of your body with just enough room for under shirt if desired.
Regular Fit: This garment will skim the body. It will not be too loose or too tight. Can be worn as a second layer over top of other clothing without being tight.
Oversize Fit: This garment will be loose and roomy, and it will drape over the body. For a more regular fit, buy a smaller size than normal.