The Gnuhr Heatwave Puffer Jacket v1.5 is the synthetic puffer jacket that we were all waiting for that nobody made yet - until now!!! Built to keep you warm without weighing you down, this jacket punches way above its weight with an exceptional warmth to weight ratio. It’s super lightweight, packs down small, and works just as well in your kit as it does in your everyday wardrobe. Intentionally simple and streamlined, there’s less that can fail, and no baffles means fewer cold spots, delivering consistent warmth throughout. The insulation is a next-gen synthetic sheet from Toray, engineered with mechanical crimping to hold its loft and shape, even after repeated use and washing. The shell fabric is an update and is now even more durable with a 15D, 60% bio-nylon blend. Meaning it’s mostly plant base and less reliant on petrochemicals.

The Heatwave Puffer has undercover gone third party testing since it’s creation which shows the puffer jacket has an exceptional warmth to weight ratio for a synthetic insulation with a garment rating of 2.01 clo and Temp Rating (2 MET) 5°C/42°F. The insulation also shows excellent regain after compression with 97.7% loft recovery. The Heatwave Puffer also has excellent wash durability, with an maximum IDFL rating of grade 5 (no defects after several washes).