We currently carry sizes XS to 2XL and our signup size guidelines are based on average sizing across brands. We recommend signing up with the general size you buy in underwear (ex. if all your underwear is a size medium, select medium); if you are in between sizes, we recommend sizing up and leaving a note in the "Anything else we should know" section of the signup process.
Please see our updated size chart below to help guide you if you are unsure!