The Furnace Puffer is the pinnacle of insulation jackets and has been specifically engineered to conquer the cold. This jacket packs in plenty of features with premium 750+ DWR treated RDS duck down housed in stitched baffles to prevent clumping, down migration and maintain core warmth. Utilising a polyester exterior, windproof membrane and nylon lining the Furnace Puffer will ensure heat is retained, while helping maintain and regulate your core temperature. Engineered utilising premium DWR treated down, adjustable hood, velcro closure cuffs, full length YKK zipper and hand warmer pockets. The Spika Furnace jacket is a lightweight yet durable and packable jacket. The ultimate jacket for when you expect to encounter the cold while on your pursuit, glassing atop a mountain or campside.