Dawnmarie Deshaies has partnered with leading wellness experts to create a community platform for nutrition, fitness, self-care and autoimmune information while fostering a spirit of togetherness and awareness - enabling positive change and management in today's complex world.

ThermApparel is proud to be one of those partners.

why Dawnmarie likes ThermApparel cooling vests


"On all of my modeling photoshoot between the lights, the changing of the clothes and having to pose for hours, this cooling vest from ThermApparel has truly changed me from living with Multiple Sclerosis. From being a very busy entrepreneur, model, author, executive producer, I am always super busy. This incredibly well designed cooling vest hides right underneath my clothing keeping me nice and cool. It also helps me with hot flashes and the wrap around your tummy holds me firm and keeps my posture staying proper all day. Extremely comfortable and highly recommended by me Dawnmarie Deshaies"

not all cooling vests are created equal

1-3 Hours Cooling Time

SlimCool Packs 1-2 hours cooling time.
ExtendedCool Packs 2-3 hours cooling time.

Fast Recharge – 20-60 Min.

Refreeze with a freezer, refrigerator or container of ice water. No electricity needed!

Lightweigh, Comfortable, Reusable

SlimCool Packs Weight – 1.3 lbs.
ExtendedCool Packs Weight – 1.9 lbs.

Slim Fitting, Easily Transportable

7 sizes and 2 colors. Adjusts to fit a wide variety of body shapes and sizes.

Safe Against Skin

Non-toxic cooling packs provide consistent cooling temperature that won’t cause ice burn.

Works In Humidity

Works in all temperatures. Suitable for hot humid climates and hot dry climates.

Cooling Vest Tip: If a vest remains in your closet because you are too embarrassed to wear it, well, then it is of zero help. So buy what you’ll wear. Pay attention to the manufacturer’s return policy – ThermApparel’s is 60 days for a full refund less shipping provided the vest is returned in link-new condition.

Sizing Guide

How to get the right UnderCool for you.

Sizing Tip: To get the maximum cooling effect from a vest, it should fit snugly around your body. If it hangs loose, some of the cooling power will be lost as you’ll only be chilling air and not your body. ThermApparel’s vest must be sized properly to hug you torso and lower back.

How to beat the heat

  • Cool it.

    • • Quickly charge the cooling packs in the fridge, freezer or ice water.
    • • Cooling packs provide about 2 hours of oh-so-sweet cooling.
  • Wear it.

    • • Slip the cooling packs into the vest and wear under your outer layer of clothing.
    • • Before ordering, check out our sizing guide to find your best.
  • Love it.

    • • Take UnderCool for a spin in and out of the garden with our 60 day return policy..
    • • Rechargeable cooling packs mean you can look forward to gardening again and again.

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.