Dyneema and UltraTX Ultralight Waterproof Compression Dry Bag Cuben Fiber DCF
An UltraLiteSacks original, compression sacks made with Dyneema Composite Fabrics! Beware of lesser quality DCF compression bags that are on the market. Our original ULS design has been tested on countless thru-hikes and perfected over the years.
Designed to keep your bulky gear organized, dry and compressed in order to minimize the amount of space they take up in your pack. These bags are a great option for those looking to use smaller capacity backpacks, fast packers, or for compressing down bulky winter jackets and sleeping bags.
Dyneema CT5K.18 (1.43oz/yard) Green, Blue and White, Dyneema CT3.5K.18 (1.3oz/yard) Black
Dimensions and weights by size:
Small- 16x8.5 40 grams approximately 5.5 liters
50°+ down quilts, Puffer Jackets, Sleeping Clothes, etc.
Medium - 22X8.5 (these are designed to be tall and skinny) 45 grams approximately 6.8 liters
Tents, 3 season down quilts, warm weather synthetic quilts
Large - 22X11.5 50 grams approximately 9.5 liters
Larger tents, winter down quilts and sleeping bags, Synthetic quilts and sleeping bags
Variety Pack includes 1 small, medium and large 1oz bags!
Dyneema material is 15x stronger than steel and has a very high tear resistance strength at a much lighter weight than compared to any other material on the market.
Please note, this posting is for the bag only, no other items.
*Due to numerous supply chain issues, components and/or materials are subject to change temporarily if they are out of stock, during these times we will substitute similar or comparable (weight and materials when needed. If you are concerned about the specific materials at the time of purchase, please reach out prior and we can let you know if anything has changed.
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1,010 reviews5 out of 5 stars
I have multiple sizes but plan to get them all. I've had many compression sacks and these are the strongest and lightest! Gets used 100+ days a year in my work pack as a Wilderness Ranger in the WA Cascades. Fast shipping as well. Highly recommended!
I absolutely LOVE this thing! And Luke was spot on when I asked his recommendation for sizing for my sleeping bag! I waited a while to review it until I had a chance to use it (backpacking got put on hold for a bit), and it's by far one of the best purchases I've made for my pack! Super easy to compress everything down - more so than the stuff sacks things come with! And the construction is really solid! And there's nothing quite like the piece of mind that comes from knowing your down sleeping bag/quilt(s) are in a water proof bag! Seriously, if you're on the fence, just buy it! you won't regret it!
OMG this bag is IT! I’ve tried different Dyneema bags to keep my super fluffy 15 degree down quilt in, but with the narrow shape & cinch-down straps, this blows them all out of the water. Fits perfectly in the bottom of my pack. It arrived quickly & the company was really great to work with.
Perfect for ultralight backpacking. I bought them for my top quilt and under quilt. Both compress beautifully. Well made sacks!
Photos from reviews