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The Jacket shell is made from NEW Pertex Quantum 10 Denier fabric to balance ultra lightweight, with fantastic durability and weather resistance to weight balance.

Pertex Quantum GL ® 10 Denier is the lightest fabric Pertex make. It is a true featherweight at around 25g/m2. Pertex use the finest yarns available with the maximum thread count.
Less weight shouldn’t mean ‘please be careful’. Pertex Quantum stands its ground and shows the best strength to weight ratio. Tear strength and seam strength are good for its weight and it can easily be used in shell jackets and withstands the abuse of hardcore use. The abrasion resistance however is not comparable with standard weight 44 decitex fabrics.
Thanks to its dense weave, Pertex Quantum is downproof and can be used for any high-end application in sleeping bags, down jackets and expedition gear. It is a gear freak’s dream!
The Down used in the Infinity jacket is the best quality down we have ever used.
We use US850 Fill power Quality European Goose Down in the Infinity range this offers amazing lofting and warmth to weight. this is perfectly complimented by the lightweight outer fabric and allows the jacket to offer amazing warmth to weight.