Our Sub Zero range started with a simple idea – could you build a cardigan that could outperform a puffer jacket in a cryochamber? The short answer was yes. So now we’ve built the Sub Zero Sweaters the same way. Engineered from two incredibly powerful natural insulators – lambswool and superfine alpaca wool – the sweater is designed to help keep you warm even in sub zero temperatures.
 
Alpaca wool is one of the most extraordinary natural materials on the planet. It’s as soft as cashmere, warmer than sheep’s wool, and contains no lanolin so it’s hypoallergenic. Native to the Andean plateau of South America, alpacas have evolved over millennia to survive the harsh conditions of the mountains where altitudes vary between 3,500 and 5,000 metres, and intensely hot days are followed by sub zero nights. 
 
We then blend it with organic lambswool for stretch and durability, and spin our yarn in Sesia, a carbon neutral mill in the foothills of the Italian Alps. The sweater is also left undyed. So the colours you see are the colours of the sheep and alpacas’ natural fleeces.