Keep Your Back Cool While Others Melt

A maker known as Crafterboi built a fan-assisted backpack cooling system, an open framework worn between the back and the pack that lets air flow freely, boosted by two 5-volt fans at the top. The piece is 3D printed in PETG rather than PLA since PETG holds up better under the higher surface temperatures backpacks can reach on hot days. The prototype was originally shaped from a pizza box before being printed, and the write-up notes past Hackaday coverage of Peltier-based and evaporative cooling backpacks, though those older links have since rotted.

Source: https://hackaday.com/2026/09/17/keep-your-back-cool-while-others-melt. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.