Best Cooling Vests for MS
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UnderCool 3 -SALE MS Awareness-
Regular price From $149.99Regular price$199.99-25%Sale price From $149.99 -
RallyWrap -SALE MS Awareness
Regular price From $199.99Regular price$249.99-20%Sale price From $199.99 -
UltraCool -SALE MS Awareness-
Regular price From $269.99Regular price$319.99-16%Sale price From $269.99

Better Health Through Cooling
Managing heat sensitivity with MS can be challenging, but it doesn’t have to slow you down.
Whether you’re taking a walk, spending time with family, or tackling daily tasks, ThermApparel Cooling Vests, Wraps, and Sleeves help you stay cool, comfortable, and in control.
Our discreet, lightweight cooling gear empowers you to:
- Stay active & exercise longer
- Reduce fatigue
- Beat brain fog
- Keep up with the life you love
Don’t let heat hold you back—stay in the game of life with ThermApparel.

See What Others are Saying
ThermApparel believes in harnessing creativity, empathy, and the dignity of the human spirit to help individuals overcome barriers related to heat sensitivity.
We strive to provide independence and a more active lifestyle for those living with heat sensitivity from conditions like Multiple Sclerosis. In fact, we designed our UnderCool vest specifically with them in mind!
Do you know what’s just as tough as heat stress? Financial stress! That’s why we’ve partnered with leading non-profit organizations to offer support when you need it most.

Easy To Use
Cool It
Place in the fridge, freezer or ice water
Wear It
Insert cooling packs into the pockets
And Go
Anywhere you want, doing anything you want

Find the Right Cooling Gear for You
Managing heat sensitivity with MS can feel overwhelming, but finding the right cooling solution doesn’t have to be.
ThermApparel’s discreet, lightweight cooling gear is designed to help you stay active, comfortable, and in control—so you can keep doing what you love without the worry of overheating.

UnderCool 3
Concealable and Lightweight Cooling
- Worn discreetly under clothing for invisible cooling
- Choose your cooling power:
- SlimCool: 1–2 hours of cooling for lightweight comfort
- ExtendedCool: 2–3 hours of cooling for longer-lasting relief
- Easy recharge—45 min in the fridge, 60 min in the freezer, or 30 min in ice water
- No electricity needed, no condensation, and completely silent

UltraCool
Maximum Cooling for Extended Relief
- Provides the longest cooling time for all-day activities
- Ideal for outdoor adventures, extended exercise, or extreme heat
- Uses ExtendedCool packs for 3+ hours of cooling
- Durable design with adjustable fit for comfort and performance

RallyWrap
Easy On Easy Off
- Wear it your way—torso, shoulders, or legs for targeted relief
- Flexible cooling—great for post-activity recovery or staying cool at rest
- Uses the same cooling packs as UnderCool & UltraCool

CoolSleeve
Fast Cooling, Whenever You Need It
- Targets the radial artery on your wrist for rapid cooling
- Lasts up to 45 minutes—perfect for pre-cooling or fast relief
- Lightweight and easy to use—slip it on and go

Headband
Keep a Clear Head
- Helps reduce brain fog and fatigue
- Provides 30–45 minutes of targeted cooling
- Ideal for outdoor activities, workouts, or daily wear
Don’t Just Survive the Heat
These are not AI Generated People. They are Real Customers!

Insurance Coverage
Does ThermApparel accept insurance?
Unfortunately, we do not accept insurance. The majority of insurance providers typically do not cover cooling vests, as they don’t consider them medically necessary (we agree, it’s frustrating!). However, coverage may be possible depending on your insurance provider and plan.
To help, we’ve created a helpful Insurance Resource page with tips, steps, and suggestions for working with your insurance company. If insurance coverage doesn’t work out and you have MS, you can reach out to the National MS Society or the MS Foundation to apply for their cooling programs.
Please note: As a small company, we can’t bill insurance directly, but we can assist with providing invoices, medical receipts, and product information to support your claim.
Why We're Better
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Evaporative Cooling
- Doesn't work in humidity
- Cools your skin, NOT your core directly
- Lightweight & Flexible
- Must be wet
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Our PCM Cooling System
- Works in any climate
- Cools your core body temp
- Lightweight & flexible
- Dry conformal cooling
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Gel & Ice Cooling
- Works in any climate
- Too cold for direct skin contact
- Heavy & rigid
- Wet from condensation
Cooling Gear
- Don’t Just Survive the Heat
- Thrive In It!
- Don’t Just Survive the Heat
- Thrive In It!
- Don’t Just Survive the Heat
- Thrive In It!
- Don’t Just Survive the Heat
- Thrive In It!