Mythic Ultra 360 Down Sleeping Bag (-8C)
With its world-first heat-reflective Thermo Ionic Lining Technology, the Mythic Ultra 360 delivers pioneering protection for those who need to make every gram count.
Product Characteristics
What It's Best For
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Material Facts
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Material Facts
Mythic Ultra 360 Down Sleeping Bag (-8C)
Total Recycled Content* i
|
1% |
Fabric i
|
0% |
Outer | 0% |
Liner | 0% |
Hydrophobic Down | 0% |
Zips i
|
35% |
Trims i
|
16% |
Fluorocarbon Content i
|
|
Fabric i
|
No |
Outer | No |
Liner | No |
Hydrophobic Down | No |
Zips i
|
Yes |
Trims | No |
Manufactured in United Kingdom | |
*Calculations based upon the weight of a regular length sleeping bag. | |
The Specifics
- Weight:(Regular) 606g/21.4oz, (Long) 666g/23.5oz
- Size:Left Zip - Regular
- EN (13537:2012) Temperature rating:ISO EN: Comfort: -2°C (28°F), Limit: -8°C (18°F), Extreme: -27°C (-17°F)
- Rab Sleep Limit:-8°C / 17.6°F
- Packed Size:36cm x 18cm (14.2in x 7.1in)
- Insulation:900FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (360g / 12.7oz)
- Product Code:QSI-35
- Super lightweight 7D Ripstop Nylon Outer Fabric
- Super lightweight 7D ripstop nylon with thermo ionic lining technology (TILT), heat reflecting to boost warmth
- 900FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (360g / 12.7oz)
- Rab® Fluorocarbon free Hydrophobic Down, developed in conjunction with Nikwax®
- Weight saving baffle construction, preventing down shift/migration
- Trapezoidal chamber design to eliminate cold spots
- Proportionally designed differential cut
- Anti snag bonded zip guard
- Ergonomically designed internal collar and hood
- Angled foot box
- ½ length YKK® 3 coil main zip with noctilucent puller
- Cotton storage sack
- Filled in Derbyshire UK
- Left zip only
- Temperature tested to new European standard: EN1357:2016
- Pack Size: 36 x 18cm/14.2 x 7.1 inches
Sleeping Bag Size Guide

Tapered Mummy | Regular | Long |
---|---|---|
Sleeping Bag Length | 215cm / 84.6 in | 230cm / 90.6 in |
Max User Height | 185cm / 72.8 in | 200cm / 78.7 in |
Internal Shoulder Girth | 160cm / 63.0 in | 162cm / 63.8 in |
Internal Hip Girth | 134cm / 52.8 in | 136cm / 53.5 in |
Internal Foot Girth | 102cm / 40.2 in | 104cm / 40.9 in |
Pack Size | 36cm x 18cm | 36cm x 18cm |




What is hydrophobic down?
We finish all our down with a hydrophobic treatment that enables it to retain its loft in damp conditions, so that your gear dries fast and stays warm. Find out how it works.
*With the exception of our 1000FP down.




What is hydrophobic down?
We finish all our down with a hydrophobic treatment that enables it to retain its loft in damp conditions, so that your gear dries fast and stays warm. Find out how it works.
*With the exception of our 1000FP down.




What is TILT technology?
A radical, heat retaining tech that works like an emergency blanket reflecting heat back towards your body, while maintaining breathability and comfort. Boosting thermal efficiency, it keeps you warm when the temperature plummets.




What is TILT technology?
A radical, heat retaining tech that works like an emergency blanket reflecting heat back towards your body, while maintaining breathability and comfort. Boosting thermal efficiency, it keeps you warm when the temperature plummets.




Rab Sleep Limit Explained
Need help choosing the right bag for your next adventure? This is our real-world assessment of a sleeping bag's usable temperature limit. Find out how we arrive at this rating and how you can use it to select your bag.




Rab Sleep Limit Explained
Need help choosing the right bag for your next adventure? This is our real-world assessment of a sleeping bag's usable temperature limit. Find out how we arrive at this rating and how you can use it to select your bag.