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Unboxing & Review

Honu: NASA-Inspired Cooling Backpack for Hot Weather

Feel up to 20°F cooler with the Honu cooling backpack. Designed specifically for activity in hot environments.
Pledge Here

 It’s Hot Outside… and Only Getting Hotter 

2021 is already setting heat records, and 100-degree days are becoming more frequent every year. From the “Heat Dome” over the Pacific Northwest to temperature records shattered around the world, the Earth’s climate is entering a new era marked by extreme heat.

Is This the Best We Can Do?

When we looked at current solutions to stay cool outside we found zero good options. What the heck, it’s 2021… is there really no good way to stay cool? In 100-degree weather it’s going to take more than a sun hat, a bottle of water, and a wicking t-shirt to survive outside.

Meet the Honu Cooling Backpack

The Honu Cooling Pack was designed for this hotter reality, standing at the fore of a new wave of climate-adaptive equipment as a new active cooling pack designed specifically for outdoor adventure.

In contrast to passive cooling wearables—wicking fabrics, evaporative bandanas, and ice pack pockets—the Honu Cooling Pack is designed to actively remove heat from the wearer’s body by circulating cool water through patented, thermally-conductive polymer tubing integrated throughout the pack. Honu leverages the body’s natural cooling biomechanics to reduce the experience of atmospheric temperatures by up to 20°F.

Honu’s active cooling is achieved via a highly flexible and form-fitting network of ThermoCore thermoconductive microtubes, which circulate icy cold water from a custom designed reservoir. More than 60 feet of microtubing is built into the body of the pack’s lightweight taffeta nylon mesh, specifically targeting key heat extraction zones.

 The History Behind The Technology 

The ThermoCore™ Active Cooling Technology was originally developed for the U.S. Army and Navy to lower core thermal temperatures in extreme environments. 

Designed to be maximally conductive and work in conjunction with the body’s physiological responses to temperature, the cooling technology performed extremely well in lab testing, achieving twice the heat extraction of other wearable cooling products. But the real proof came from the field, naval shipyard workers were blown away by the cooling capabilities of our cooling shirt.

Made to support up to a half-day of high-exertion activity, the Honu’s active cooling system was tested and refined by feedback from professional triathletes and avid hikers in Hawaii’s hottest and most demanding environments. In controlled laboratory testing, the Honu achieved 2x the heat extraction of other wearable cooling products.

The Honu uses ice cubes or gel packs to keep the pack’s water reservoir cold. Easy recharge in 30 seconds or less!

Hugs Your Body Like a Turtle Shell

Honu is the Hawaiian name for the endangered green sea turtle whose habitat is threatened by the effects of climate change and human activity. The Honu pack was designed by a team of engineers and designers in Hawaii as a personal cooling system that lowers body temperature, increases comfort, and extends the duration of hot-weather outdoor pursuits.

 Ready, Set, Go! – Ready to go in 30 seconds 

Designed to get you up and outside as quickly as possible, the Honu can be prepped and ready to go in under 30 seconds. Simply fill the cooling bladder with ice or gel packs from the freezer, plug in the included power bank, and you’re ready to face the heat. The 3L cooling bladder provides up to 4 hours of maximum cooling duration.

On the leading edge of a new wave in climate adapted equipment, the Honu Cooling Pack is a new breed of active cooling packs designed specifically for outdoor adventures – from mountain biking to hiking, and anything that keeps us active and outside. 

Designed to keep you outdoors – feeling cooler and adventuring longer.

Contact the Honu team at jimmie@19degreesn.com for custom orders or larger quantities.

*Due to overwhelming global demand and pricing, we will collect shipping and other fees after the campaign is over.

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