The heavyweight Glacier features a 1000 denier ripstop, waterproof breathable outer. It has a heavyweight 320gsm polyfill with a breathable nylon lining. 
Double chest straps, front shoulder gusset, cross-over surcingles, legstraps, , tailguard, fixed neck cover with twin easy “click in” buckles and strengthened surcingle guides.
In a really fresh bold check.
Tough 1000 denier outer
Shoulder movement pleats
Breathable lining
Fixed neck cover
320gsm polyfill
Heavyweight
Waxed Stitching
Ripstop
Taped Seams
Waterproof