We are looking for manufacturers of cold weather sleeping bags. Only reply if you are making bags that will keep an individual warm with temperatures below zero degrees.Both styles feature:Nylon shell with brushed cotton flannel lining9 lbs. Of hollow fiber fill with double-layer construction and off-set stitchingRated and tested to below zero degrees94 inches long and 39 inches wideHood with baffle and shock-corded drawstringDraft tube along zip and collar baffle2-way full-length ykk zip3 detachable 2" wide nylon webbing straps on bottom for roll-up and storageDwr water-repellent treatment on canvas shell.In your choice of mummy or rectangle