This premium quality & superbly designed expedition jacket is packed with 850 fill power premium goose & duck down that has been made highly water repellant by Down Tek Nanotechnology. This cationic treatment creates surface tension on the down cluster. When molecules of moisture encounter Down-Tek, the moisture is forced to collect into a sphere & roll off the down cluster rather than adhering to & soaking into it. This treatment adds no discernable weight, is environmentally friendly & dramatically improves the wet performance of down. Down-Tek absorbs 30% less water, dries 60% faster & retains significantly more loft when exposed to moisture. All this magic down is cocooned in a 30 Denier windproof, rip-stop nylon main body outer with DWR finish resulting in a highly weather resistant jacket. Box wall construction is used on the main body to maximise loft & insulation, whilst the arms have a stitch through construction to minimise weight. Jottnar have applied their fastidious detailing to this jacket & used Neutron 120 synthetic filling on the cuffs, hem & collar, these are areas most likely to wet out. The fully insulated & adjustable helmet compatible hood has a stiffened & wired peak & a nice high collar with soft Rentex (synthetic micro-suede) beard guard to protect your face. A 2 way YKK front zip is used to allow harness access & it has a large synthetic filled internal baffle to reduce cold spots. Rentex is also used to line the inner cuffs which are elasticated with Velcro adjustment. There are two zipped hand pockets with protective front facing insulation & one zipped internal pocket capable of swallowing a 1 litre bottle. You even get a choice of zip puller cords, lightweight, or glove compatible. DOWN-TEK water repellent down insulation 850 fill power, 93/7 premium goose/duck down ratio Body-mapped down fill schedule Box wall torso construction for warmth Stitch through arm construction for light weight Neutron 120 insulation in wet-out zones at cuffs, hem & collar 30 Denier windproof, rip-stop nylon main body outer with DWR finish Helmet compatible insulated hood with internal pulls Wire stiffened hood brim with fully mouldable peak 1-litre bottle compatible, zipped inner pocket YKK two-way front zipper Athletic, streamlined, articulated cut Internal oversized storm baffle with Neutron 120 synthetic insulation Hand warmer pockets with front facing insulation Adjustable, elasticated cuffs with Velcro adjusters and Rentex cuff liners Rentex beard guard Internally protected hood pull cords Corded, glove compatible zipper pulls One-handed, elastic hem drawcord operation Embroidered logo