UnderCool Sizing Guide

Size Waist Men / Women
XXS Men 20" - 24"
Women 18" -  22”

Men 51 cm - 61 cm
Women 45 cm - 55 cm

Extra Small Men 24" - 28"
Women 22" - 26"

Men 61 cm - 71 cm
Women 55 cm - 65 cm

Small

Men 28" - 32"
Women 26" - 30"

Men 71 cm - 81 cm
Women 65 cm - 75 cm
Medium

Men 34" - 38"
Women 32" - 36"

Men 86 cm - 97 cm
Women 80 cm - 91 cm
Large

Men 40" - 46"
Women 37" - 44"

Men 102 cm - 116 cm
Women 96 cm - 111 cm
Extra Large

Men 48" - 52"
Women 45" - 51"

Men 121 cm - 132 cm
Women 114 - cm - 129 cm

Waist Measurement:

Currently UnderCool comes in 6 sizes XXS - XL to fit a wide variety of body shapes and sizes, because "one size fits all" really isn't true. UnderCool needs to fit your body like a glove to give you the best cooling support.

UnderCool sizing is based on your natural waist size, not your pant size. Not sure where your natural waist is or how to get the correct sizing? If you bend to the side, you will crease in the middle of your body; this is your natural waist. That's where you want to take your waist measurement. Then check our handy sizing guide and order the correct UnderCool for you.

Women's Sizing Guide:

Please note sizing is dependent on natural waist size, not bust, hip or pant size.

Men's Sizing Guide:

Please note sizing is dependent on natural waist size, not chest or pant size.
 

Don’t Have a Fabric Measuring Tape?

You can measure your waist the same way with a straight ruler and:
String / Yarn
Dental Floss
Shoelace

 

Questions about our vests or shipping? Reach out to the ThermApparel team toll-free at 855-232-7233, write to us through our website’s contact form or chat with us via live chat. We always respond because, otherwise, that wouldn't be cool.