300-400 dollar marmot helium 15 vs western mountaineering Alpenlite 20. This is coming from a person who has a custom bag designed by someone who designed and managed the manufacturing of many marmot bags
The WM zipper rarely snags . The marmot several times each time you get in and out . The WM you can relieve yourself and be back in your bag before you are awake . For me , the marmot I was awake by the time I got the zipper zipped
The WM draft collar works ... it means your feet and chest are similar warmth . The helium does not have a real one . Your feet may sweat and chest might be cold
The marmot I would feel chilled at 25 the WM really is a 20 degree .
The helium 2 lb 8 ounces .. the WM 2 lbs 1 .
Sure , the marmot is a good bag , it will last ( though my son needs his zipper replaced in his and it’s probably 7 years old ) but the WM is a great bag . If you use it say 200 nights over 10 years and then sell it on eBay it’s likely the cost is less than a dollar a night for the convenience . To me , for a dollar I’ll take the WM .
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