Cool58® phase-change packs activate at a comfortable 58°F (14.4°C), giving steady, gentle cooling for up to 1.5 to 3 hours without the shock of ice. That milder temperature makes them a favorite for people with MS or heat sensitivity, and for anyone who finds frozen packs too cold against the skin.Best of all, Cool58® packs don't need a freezer. Recharge them in a cooler of ice water, which makes them ideal for travel, work, and anywhere a freezer isn't handy. They're reusable, non-toxic, and fit the same vests and accessories as our Kool Max® packs.
Choose the pack or set that matches your product. Not sure which you need? Each vest and accessory lists the packs it uses on its own product page.
