Best Cooling Products for Cosplay, LARP & Renn Fair
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UltraCool
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UnderCool 3
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RallyWrap
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Tired of Feeling Hot and Uncomfortable in Costume?
Cosplay, LARPing and performing at Renaissance Festivals demand endurance—whether you’re battling in heavy armor, navigating crowded conventions, or staying in character for hours.
Overheating can drain your energy, break immersion, and cut your experience short.
That’s why ThermApparel’s lightweight, discreet cooling gear is designed to keep cosplayers, LARPers and Renn Fair characters comfortable without interfering with movement, costumes, or performance.
Condensation-free cooling, and fast 30 min recharge in ice water means you can stay in character, maintain your energy, and enjoy every moment—without breaking a sweat.
Invisible Cooling
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
Choosing the right cooling gear can make all the difference in costume performance, live entertainment, and theatre productions. Whether you or your team are wearing elaborate costumes, dancing under hot stage lights, or performing in high-energy roles, overheating can drain energy and cut performances short.
ThermApparel Cooling Vests, Wraps, and Sleeves are designed to keep actors, performers, and crew members cool, comfortable, and focused. With silent operation and no electricity required, our cooling gear helps you stay in character, move freely, and perform at your best—without the heat slowing you down.
Why Choose ThermApparel Cooling Gear?
- Interchangeable Cooling Packs – Use the same cooling packs across UnderCool, RallyWrap, and UltraCool for ultimate flexibility.
- Long-Lasting Cooling – Stay cool for 1.5 to 4+ hours, depending on your setup.
- Fast & Easy Recharging – Ready to go in just 45 min in the fridge, 60 min in the freezer, or 30 min in ice water—no electricity required.
- Silent Operation – No fans, no buzzing—just discreet, effective cooling.
- No Condensation, No Mess – Keeps costumes, wigs, and makeup dry.
- Customizable Fit – Lightweight and low-profile designs stay hidden under costumes and wardrobe.
Find the perfect cooling solution for your performance and stay in the spotlight longer than ever!
UnderCool 3
Concealable, Lightweight Cooling for high energy roles
Need stealthy cooling for high-energy roles? The UnderCool 3 Cooling Vest provides 1.5–3 hours of cooling in an ultra-light, low-profile design.
Perfect for dancers, stunt performers, or actors needing full range of motion without added bulk.
- Provides 1.5–3 hours of cooling depending upon cooling pack type
- Ultra-light, low-profile design will fit under any costume
- Perfect for actors who need full range of motion without added bulk. Available in white or black.
- No electricity needed, no condensation.
UltraCool
Maximum cooling for bulky, hot costumes.
- Provides up to 4 hours of powerful cooling.
- Full Torso Cooling
- Durable design with adjustable fit for comfort and performance
- No electricity needed, no condensation.
RallyWrap
Easy on/off Versatile Design
- Delivers 2-3 hours of cooling.
- Great for post-activity recovery or pre-cooling on a set change.
- One Size fits most.
- Versatile design lets you choose where you want cooling.
- No electicity need, no condensation.
CoolSleeve
Fast Easy Cooling on the Go.
- 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
Sweat ruining your makeup?
- Delivers 30–45 minutes of fast, targeted cooling to your forehead,
- One size fits most
- No Electricity needed, no condensation.
Where Cooling Meets Comfort
4-Way Stretch Fabric moves with you through every duel, dance, and dramatic entrance.
- Moves with you – Stretches in every direction maximum flexibility. for smooth serves and quick returns
- Tailored fit – Adapts to your body's movements for a snug, comfortable feel
- Keeps its shape – Maintains it's shape and elasticity match after match
- Court-ready comfort – Built for long days in the heat
Curious about the tech behind the gear? Check out our How it Works section.
Don’t Just Survive the Heat
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SOUND FREE
Silent operation, no noise from electrical or mechanical parts.
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COSTUME STAYS DRY
No Ice, No Mess. PCM Cooling Packs prevent ice burns and wet costumes.
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WORKS IN ANY CLIMATE
From humid to scorching, ThermApparel’s Cooling Gear adapts.
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FAST & SIMPLE RECHARGE
No electricity needed. Recharge in 30 minutes with ice water for nonstop cooling.
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LONG LASTING
2-4 hours of cooling and can recharge thousands of times.
These are not AI Generated People. They are Real Customers!
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Keeping cool in costumes , cosplay and chest binders!
If you’re like me and used to nothing being big enough, this is for you! I’ve got about a 63” hip and the XXL is a little loose on me, and there are extension panels if they’re still small.
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Love how it was invisible with my cosplay
"The vest was comfortable while modeling my cosplay, and the black color coordinated well with costumes that reveal what’s underneath."
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Undercover lifesaver on stage!
The cooling vest is super cool! As an actor who’s had to wear hot, uncomfortable costumes, this was an undercover lifesaver on stage. It fit great, wasn’t heavy or awkward, I could still move the way I needed, and made me so much more comfortable!
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Stayed cool while LARPing
“With the vest, I was able to stay cool and in character, allowing me to fight and roleplay without distraction."
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The vest is really lightweight, I forgot I had it on.
The vest is awesome, ten minutes into a regular fursuit photoshoot I'd be sweating, but we took photos for 2 hours and I didnt break a sweat.
Experience the magic of ThermApparel PCM Cooling Packs
Meticulously designed absorb body heat and support your natural cooling process, helping regulate your core temperature for quests, battles, and long days in costume.
Slim and discreet, they slip easily into our garment pockets and refreeze in ice water, fridge or freezer.
- Costume-Friendly Cooling – Slim, flexible packs that fit discreetly without adding bulk or bounce under armor, furs, or gowns
- Heat Armor for Your Body – Absorbs body heat to help regulate your core temperature so you can focus on your character, not the heat
- Natural Comfort – Works with your body’s cooling system to keep you refreshed and ready for action
- Zero Hassle – No soaking or freezing required—just refreeze in ice water, wear, and stay cool all day long
Ready to stay chill while you dazzle? Visit our How it Works section and prepare to rule the realm, cool and comfortable.
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
- 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!