Is it possible to design a cardigan that can outperform most puffer jackets? We decided to find out by building the first Sub Zero Cardigan. While the average cardigan weighs under 500 grams, at 1.3kg our Sub Zero Cardigan weighs nearly as much as our Titan Puffer.

Engineered from two incredibly powerful natural insulators – lambswool and superfine alpaca wool – the Sub Zero Cardigan is designed to keep you warm even in sub zero temperatures. We know this because we’ve tested in the same way we test our puffer jackets. By taking it to a cryochamber.

Tailored for a regular fit, it comes with a thick shawl collar that can be raised and fastened at the throat like a built-in scarf, five large bioresin buttons big enough to be done up even with freezing hands, and ribbed cuffs and hem to trap warm air at the wrists and waist.