Rab Mythic Ultra 180 Sleeping Bag

Features

• Shell fabric is superlightweight 7-denier ripstop nylon
• Liner fabric is superlightweight 7-denier ripstop nylon with heat-reflecting Thermo Ionic Lining Technology (TILT) to boost warmth
• 900+ fill-power European goose down with Nikwax fluorocarbon-free hydrophobic finish
• Down is RDS-certified
• Weight-saving baffle construction prevents down from shifting and migrating
• Trapezoidal chamber design helps to eliminate cold spots
• Proportionally designed differential cut
• Antisnag bonded zip guard
• Angled foot box

Imported.

Many sleeping bags are rated for temperature by an independent testing protocol. REI and the broader industry now use the International Organization for Standardization (ISO) 23537 protocol, which improves on the older European Norm (EN) 13537 standard; you may still see older items in our assortment that were only EN tested. With either protocol, each bag gets a Comfort (or T-Comfort) rating and Lower Limit (or T-Limit) rating. 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. Ratings are based on a person wearing one long underwear layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38. Many brands use the Comfort rating for women’s bags and the Lower Limit rating for men’s and unisex bags. Everyone’s body and sleep comfort differ, and conditions of use (posture, clothing, sleeping pad R-value, wind, humidity, etc.) affect total insulation, so EN and ISO ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth.View all Rab Backpacking Sleeping Bags

Technical Specs

Best Use

Tested Lower Limit

Tested Comfort

Temperature Rating (F)

Temperature Rating (C)

Weight

Ultralight

Shell

Zipper Location

Insulation Type

Water-Resistant Down

Fill

Fill Weight

Lining

Sleeping Bag Shape

Fits Up To (in.)

Shoulder Girth (in.)

Hip Girth (in.)

Stuff Sack Size

Gender

Sustainability

Backpacking

5 degrees (F) – ISO

35 degrees (F) – ISO

32 degrees (F)

0 degrees (C)

14.1 ounces

Yes

Nylon

Left

Down

Yes

900+ fill-power goose down

180 grams

Nylon

Mummy

Long – Left Zip: 78.8 inches

Long – Left Zip: 63.8 inches

Long – Left Zip: 53.5 inches

Long – Left Zip: 6.8 x 13 inches

Unisex

Down certified to the Responsible Down Standard (RDS)