Fit Guide

let's find your perfect fit

KBSWIM ranges in a variety of styles available in sizes S-L. We currently have a limited amount of styles available in XS-L and S-XL. Soon all of our pieces will range from XS-XL. All garments are labeled as US sizing Please use our sizing guide as an estimate to determine what size is best for you. 

If you are still unsure or need further assistance, feel free to reach out to our customer service team on our online chat or through our email at

-All sizes typically run true to size unless otherwise stated in the product description.

-All swim is double layered with eco sustainable fabric.

-If you are in between sizes, we recommend you size up to the larger size.


You will need a tape measure and make sure you are in thin or light clothing before taking your measurments. All measurments are in inches.

BUST: Wrap the tape measure around the fullest part of your bust but not too tight.

UNDERBUST: Wrap the tape measure around your rib cage area right under your bust.

WAIST: Wrap the tape measure around the smallest place on your waist line or find the natural bend in your waist and measure there.

HIPS: Wrap the tape measure around the fullest place on your hips and measure.

LENGTH: Place the tape measure in the center of your best in between your bust and measure straight down the center of your torso until you reach the inseam.