Marmot Plasma 0 Long ReviewMarch 19, 2014
- Extremely warm: 900 fill down is no joke.
- Highly compressible and light weight. Easy to fit in my pack.
- Pertex Quantum fabric resisted water without being too “crinkly”.
- The fit and interior feel were quite comfortable.
- The zipper can get stuck fairly easily.
- Only comes with left zipper opening
- Expensive: The 900-fill down is not cheap.
The Marmot Plasma 0 Long is certainly one of the best sleeping bags in this class. I found it to be as small and lightweight as similar bags that may not be as durable. The Pertex fabric is strong and water resistant while maintaining a soft feel. It packs quite well into its stuff sack. This is a bag that delivers all of the performance you’d expect at this high price.
Unlike some other high performance bags, the shell fabric is both high tech and comfortable. It doesn’t have a swishy sound or crinkly feel, making it quite nice even against bare skin.
The Plasma 0 Long is supremely lightweight and packable. Despite its small size, it has a very high loft. During my 2013 expedition to Lhotse, I noticed no cold spots or gaps in the insulation develop.
Quality of Construction
The vertical baffles were extremely well done and reduced cold spots. The lightweight, but durable Pertex Quantum shell was excellent and was treated with an effective DWR finish.
This bag is an inferno. If you have never used 900 fill down before, you are in for a treat. Considering how light and compressible this bag its, it positively roasts.
While the Pertex Quantum isn’t advertised as a water resistant fabric, I still found the fabric to be quite resistant to moisture. During my high altitude testing, condensation buildup in the tent was a perfect way to test the water resistance of the fabric. Where competing bags absorbed moisture readily, the Plasma 0 managed well.
The Plasma 0 is a top end bag, so the pricetag may be a bit intimidating for some. The price is a bit more than competing bags from Mountain Hardwear, The North Face, etc. That said, I was impressed with the Pertex Quantum shell. It seems quite durable and despite a lot of abuse, the construction has been completely downproof so far.