Fusion Dry 1700+

The most extreme expedition down protection available

Fusion Dry 1700+ is as warm as you get a down sleeping bag designed for the most extreme use imaginable. It is an ultra warm heavy weight rugged down sleeping bag constructed for extreme use in rough arctic or mountainous conditions. The outer casing is made from extra durable shell fabric that has enhanced water repelling function as well as being highly breathable. The down filling is Yetis trademark dry down with a coating that makes the individual down fibres water repellent and quicker drying – without compromising the insulation power. The Fusion Dry 1700+ has an internal collar and freezing puff to hold the hot air inside the bag where you need it and both H- and S-Box construction with a triple layered integrated foot box for extra protection of the extremities. The Fusion Dry 1700 is made with one purpose in mind: provide a durable and ultra warm bag for the most extreme adventure.

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100% Polyester


100% Nylon


Crystal Down Dry
90/10 European down - durable water repellent down
Euro standard 700+ cuin
US standard cuin
Crystal Down Dry


Comfort: -23°C
Limit: -32°C
Extreme: -52°C


S, M, L, XL
Size L, filling = 1739 g / total weight = 2420 g
Length = 230 cm
Shoulder width = 88 cm
Foot width = 57 cm

  • water repellent and quick drying down filling
  • H- and S-Box construction
  • integrated triple layered foot box
  • enhanced water repellent fabric
  • highly breathable casing fabric