In stock


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Get up to $70 off compared to a new 3.0 UnderCool cooling vest!

Scratch and Dent Vest Garments have cosmetic defects only. There are no functional problems.

All sales final. (No returns or exchanges)

3.0 Sizing Tip: If you are in between 2 sizes order the LARGER size. 

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

Size Waist
XXS 18" -  24”

46 cm - 61 cm


24" - 31"

61 cm - 78 cm

31" - 40"

78 cm - 101 cm

40" - 51"

101 cm - 129 cm
XXL 51" - 64" 129 cm - 162 cm

Sizing Tips for 3.0:

  • Sizing is based on your natural waist, not your hips or pant size. 
  • Measure against your skin.
  • Take your measurements in front of a mirror.
  • Make sure your tape measure is level on both sides. 
  • UnderCool needs to fit your body like a glove to give you the best cooling support. 
  • If you are in between 2 sizes, order the Larger size.

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.