Use a soft measuring tape above your waist (inches) at the navel area where your weight belt would sit.  This will ensure proper sizing. NOT YOUR WAIST where your shorts sit.  Please do not suck your stomach in, and keep everything relaxed when measuring. 

RECOMMENDATIONS: If you are in-between sizes, please go down a size. Ex. If you measure 33", we recommend you choose a MEDIUM.

Size Waist Measurement (in)
XS 21 - 26 inches
Small 25.5 - 32 inches
Medium 29 - 35 inches
Large 33 - 39 inches
XL 36.5 - 43 inches
2XL 40 - 47 inches
3XL 44 - 49 inches