Sierra Designs  Synthesis 20 Sleeping Bag - Long

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Whether road tripping or backpacking, you'll get quality sleep with dependable gear. Transform your setup with the long-length Sierra Designs Synthesis 20 sleeping bag with SierraLoft™ insulation.

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Features

  • It's also built with lightweight, durable materials that are typically reserved for more premium sleeping bags; durable water repellent (DWR) treatment sheds moisture
  • SierraLoft synthetic insulation provides lofty warmth, even when wet
  • Dual, anti-snag zipper system makes sleepy midnight adjustments easy, and a draft collar along the zipper prevents uncomfortable cold spots from touching your skin
  • To help you fine-tune your temperature, the patented self-sealing foot vent adds instant ventilation at the toe
  • Cinching hood locks in heat at the head, and doubles as a barrier when your pillow likes to scoot away
  • Draft dodger collar helps prevent drafts
  • Made with lightweight, 20-denier ripstop nylon fabric
  • Closeout

Imported.

Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Sierra Designs Camping Sleeping Bags

Technical Specs

Best Use

Camping

Tested Lower Limit

20 degrees (F) - ISO

Tested Comfort

31 degrees (F) - ISO

Temperature Rating (F)

20 degrees (F)

Temperature Rating (C)

-6 degrees (C)

Weight

2 lbs. 12 oz.

Shell

20-denier ripstop nylon

Zipper Location

Left

Insulation Type

Synthetic

Fill

SierraLoft synthetic fibers

Fill Weight

1 lb. 15.2 oz.

Lining

20-denier ripstop nylon

Sleeping Bag Shape

Mummy

Fits Up To (in.)

78 inches

Shoulder Girth (in.)

64 inches

Hip Girth (in.)

58 inches

Stuff Sack Size

7.6 x 15 inches

Stuff Sack Volume

12.9 liters

Gender

Unisex

Buying Advice

A person spreads out a sleeping bag inside a tent at a camping site

Reviews
1 reviews with an average rating of 3.0 out of 5 stars

Ratings Snapshot

Product Rating

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DCSail
Iowa
Rated 3.0 out of 5 stars

comfortable but...

2 years ago

Bag is warm and comfortable. Foot flap is hit or miss. Foot flap is good if you're tall enough to fill the bag and allows an easy way to relax a bit. however, your feet could slip out unintentionally as you sleep if your somewhat shorter.

Age:45–54
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