Sevaros PhaseCore Pro™ Phase Change Cooling Vest 4 Hour Lightweight — Portable Cooling Vest No Power for Outdoor Work Sports Construction Heat Relief
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Sevaros Phase Core Pro

$149.99$219.99
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Cooling Vest❄️ Free US Shipping❄️ 30-Day Guarantee❄️ Beat the Heat❄️ 5k+ Sold❄️ Cooling Vest❄️ Free US Shipping❄️ 30-Day Guarantee❄️ Beat the Heat❄️ 5k+ Sold❄️
PhaseCore Pro™ Heat Relief

From overheated shifts to steady cooling.

Worker struggling with heat before cooling vest
Before

Heat builds fast.

Outdoor work, construction, and long shifts can leave your body fighting constant heat.

Worker wearing PhaseCore Pro cooling vest comfortably
After

Cooling that stays steady.

PCM technology absorbs heat and helps maintain comfort for up to 4 hours.

VS
PhaseCore Pro™

How It Works

No batteries. No charging. Just three simple steps to steady, all-day cooling.

1
Freeze the cooling packs

Freeze Packs

Step One
2

Insert Into Vest

Step Two
3

Stay Cool For Hours

Step Three

Professional Cooling For Demanding Conditions

The PhaseCore Pro™ uses advanced PCM phase change technology to help regulate temperature and provide up to 4 hours of cooling comfort. Designed for outdoor work, construction sites, sports, and high-heat environments where staying cool matters most.

360° Ice Cooling Technology

Strategically positioned cooling zones and reusable ice packs help circulate refreshing cooling relief across your core body areas for balanced all-day comfort during demanding activities.

Verified Customer Reviews

Cooling Trusted by Thousands

(4.7/5 ·1000+ reviews)

Real cooling results

Built for heat you actually feel.

Cooling result
98%

Felt cooler

Cooling relief in seconds

Daily comfort
95%

Use it daily

A summer essential

Trusted choice
93%

Recommend it

Loved by heat-sensitive customers

4-Hour Cooling

Stay cool longer.

Freeze & Reuse

Ready again in hours.

One Size Fits Most

Lightweight & adjustable.

Outdoor Ready

Made for extreme heat.

More PhaseCore Pro™ Happy Customers

4.7
★★★★★
Based on 1000+ verified reviews

Product FAQ

Frequently Asked Questions

PhaseCore Pro™ uses advanced phase-change cooling technology to help regulate body temperature by absorbing excess heat and providing consistent cooling without electricity or batteries.

Under typical conditions, the vest can provide up to 4 hours of cooling comfort before needing to be reactivated.

No. The PhaseCore Pro™ operates completely without electricity, batteries, fans, or charging, making it ideal for outdoor work and activities where power may not be available.

Simply place the cooling inserts in cold water or a freezer until reactivated. Once ready, insert them back into the vest and enjoy another cooling cycle.

Yes. The lightweight design allows comfortable movement during construction work, outdoor labor, hiking, sports, emergency response duties, and other demanding activities.

Yes. The adjustable design is intended to fit most adult body types, allowing a secure and comfortable fit for a wide range of users.