Gear Review
Awful zippers ruin a very light bag
By Simon Hatfield
Ranked #36 - Sleeping Bags
August 29, 2010
Used this bag for 30 straight days in the pacific northwest, I found it frustrating. Pros
Very lightweight and compact, especially for a synthetic bag
Soft fill and slick fabric feels luxurious
Sweet zipper pocket, includes well designed stuff sack and storage sack
Cons
Zipper guard is designed such that the guard itself causes snags. You'd think this would be something a company like mountain hardwear could get dialed in. This is especially frustrating because it is a very solvable problem, and because you have twice the number of zippers to get snagged.
This "double-half" zipper setup also makes it difficult to really cinch the bag around your face, as well as making entry difficult. Not worth the weight savings.
It is also worth noting that this bag is not really a 0º, The EN 13537 T-limit is 14º. Compare this to Marmot's Helium 15, who's T-limit is 16º. Calling this bag a 15 would be much more accurate.
It is also worth noting that this bag is exceptionally tight, which makes it warmer and lighter, but also easier to tear the light (read: fragile) fabric by sitting up or shifting.
View Details: Mountain Hardwear Ultralamina 0 Sleeping Bag: 0 Degree Synthetic
Helpful Votes: 2 Yes
Tech Specs:
- Material:
- [shell] nylon/poly taffeta (20D); [lining] nylon taffeta (20D)
- Insulation:
- Thermic Micro
- Shape:
- mummy
- Draft Collar:
- yes, contoured hood
- Max User Height:
- [ short ] 5 ft 6 in; [ regular ] 6 ft; [ long ] 6 ft 6 in
- Shoulder Circumference:
- [ short ] 58 in; [ regular ] 60 in; [ long ] 62 in
- Hip Circumference:
- [ short ] 54 in; [ regular ] 56 in; [ long ] 58 in
- Foot Circumference:
- [ short ] 37 in; [ regular ] 38 in; [ long ] 40 in
- Stuff Size:
- 8 x 12 in
- Stuff Sack:
- yes
- Bag Length:
- [short] 72 in; [regular] 78 in; [long] 84 in
- Degree:
- 0 F
- Weight:
- [ short ]; [ regular ] 3 lb 6 oz; [ long ] 3 lb 13 oz
- Recommended Use:
- camping, backpacking
- Manufacturer Warranty:
- lifetime
Change me.



3 Comments Last Reply: December 27, 2010 By: snw4018655
But also remember that there are three different distinct parts to EU ratings, the T-Extreme, the T-Limit, and the T-Comfort. The T-Extreme is the temp at which most bags will advertise. It is the point at which hypothermia starts to set in. T-Limit is the point at which a person (standard man) might start to feel cold in the fetal position. T-Comfort seems self explanatory. It's a mistake many people make when reviewing bags, just because it says 0 doesn't necessarily mean you will be comfortable. Source: http://www.trekkinn.com/images/pdf/manua les/eng_the-north-face_manu_sleeptemp.pd f
Helpful Votes: 0 Yes
True. Thanks Kellen for making this point. That is why you won't see EU testing on bags below 0 degrees.
Helpful Votes: 0 Yes
EU testing gets less accurate at 0 degrees and below, so this bag might be warmer than the testing shows.
Helpful Votes: 0 Yes