We introduce a new bit of kit from Patagonia

Over four decades, Patagonia has been making waterproofs, t-shirts, down jackets, trousers, packs and hats.  But it’s never released a sleeping bag. Until now…Patagonia Sleeping bag
The simply-named Patagonia Sleeping Bag has been four decades in the making according to the brand. The design is apparently based on a simple mummy-style bag that Patagonia founder Yvon Chouinard built for himself 45 years ago. Most notably, he made it with a centre-front zip that allowed him to tie in at belays.
The 2017 version, which has kept the zip design, comes in two different models: the -7°C and the -1°C. The names reflect the lower limit of their temperature rating.
They’re both filled with 850 fill-power down but they vary in their baffle construction and stitching. The -7°C supposedly has a more technical design that encourages greater loft in the insulation.
The down in both bags can be traced to ensure it hasn’t come from a force-fed or live-plucked animal and the shell fabric is an ultralight 15-denier nylon.
The warmer bag weighs 913g in a regular size and the cooler one is 734g.
The -1°C ranges from £360 to £400 in price depending on the size and the -7°C ranges from £500 to £520.