Collection: Sizing Guide UltraCool

Please review our sizing chart below to ensure the best fit for your UltraCool

Size Natural Waist (in) Natural Waist (cm)
M/L (comes with 8 cooling packs) 32" - 45" 78cm - 101cm
XL/XXL (comes with 10 cooling packs) 45" - 64" 101cm - 129cm

 Sizing Tips:

  • Sizing is based on your natural waist, not your hips, pants, chest, or cup size
  • Measure against your skin
  • Take your measurements in front of a mirror to make sure it is level
  • UnderCool should fit your body like a glove to give your the best cooling