This is a Marmot Mountain Pika winter (-40F) sleeping bag. Condition is used, but lightly with no sign of wear or blemishes. I believe it is similar to Marmots current CWM sleeping bag. The bag is a regular size mummy bag rated to -40F (with an upper limit of about 10F, see below for my experiences as to why).
When I bought the sleeping bag I ordered it overstuffed (about 4oz of extra down), this does not make it warmer but helps maintain the loft when it absorbs moisture during the night. Also it helps maintain the loft and as it gets older (loses down and the down loses loft). The bag has 7" of loft, top and bottom for a total of14". It weights 4lbs 9 oz and can be packed into 1208 cu in.It has a down-filled hood with a down-filled collar guard to keep cold air from seeping in around the neck. The hood and collar guard are adjustable. There is another down-filled guard tube covering the zipper. The zipper is on left-hand side of the bag and extends almost to the foot of the bag.
The cover of the bag is a grey-silver Gore-Tex. The inside lining is a navy blue Nysilk.The storage bag and stuff sack are included. I bought this sleeping bag in January 1985 when I planning on doing much more winter camping than I was doing. Plans changed and I used the bag only twice. The first time was in February 1985 on a 6 day ski trip to Yellowstone. I camped at Mammoth, did a lot of cross-country skiing. The first night the temperature dropped to the low teens and I woke up in the middle of the night, drenched in sweat (which is why I put an upper limit of 10F). The next day I aired the bag out in the sun and the following nights I did not zip the bag all the way up and slept comfortably. When I got back home I had cleaned. The second time was many years later when I was camping with friends in October here is western Montana.
The temperature was below zero in the mornings. All my friends had wall tents with stoves and all complained about how cold they were. I was using my nylon tent and a rectangular, synthetic bag I use when car-camping with this bag unzipped and draped over me like a comforter.
This sleeping bag is barely used and cleaned. Also, as I get older I become more claustrophobic and find mummy bags to cramped. The item "Marmot Mountain Pika winter (-40F) sleeping bag" is in sale since Thursday, March 19, 2020. This item is in the category "Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags".
The seller is "plight4570" and is located in Missoula, Montana. This item can be shipped to United States.