What's a cooling vest and why do I need one this summer?

What's a cooling vest and why do I need one this summer?

Cooling Vest for Men&Women for Hot Weather,Ice Reflective Vest with 24 PCS Ice Packs and Pockets, Cool Jacket for Working in the Heat : Tools & Home Improvement

The StaCool Vest - Lawn & Landscape

Best cooling vests for summer heat waves

Maximo Gen2 Cooling Vest – Oro Sports USA

Velotoze cooling vest review - Canadian Cycling Magazine

THE ALPHA COOL CIRCULATING COOLING VEST - Dirt Orcas

Cooling Vest for Men Women - Ice Cold Safety Vest with 6 Ice Pack, Adjustable Cool Vest for Hot Weather Work : Clothing, Shoes & Jewelry

Summer Cooling Vest with PCM Ice Packs Body Heat Regulation, Cooling Jacket, Adjustable Ice Vest - China Cooling Ice Vest, Cooling Vest

Complete Performers Cooling Vest

Tech Startups Develop Cooling Clothes for Hot Weather and Heat Waves - Bloomberg

Swamp Cooler™ Cooling Dog Vest

What Are Cooling Vests and Do You Need One?

HydraCool Sport Evaporative Cooling Vest