Ice Cubes in Hydration Reservoirs for Core Temp Regulation
Using ice cubes in your hydration reservoir slashes core temperature more than cold water—but what’s the catch when sweat and sun fight back? Smart cooling demands more than just ice.

Using ice cubes in your hydration reservoir slashes core temperature more than cold water—but what’s the catch when sweat and sun fight back? Smart cooling demands more than just ice.

How do off-grid wearable sensors track core body temperature with hospital-grade accuracy—without a signal? The answer could transform your training and safety in the wild.