Ultra-lightweight with a highly tapered cut, the Mythic 400 is designed for alpine style missions where weight and pack size are crucial to success. Filled with 900FP goose down and covered with a lightweight recycled Atmos™ fabric, it's a high-performance bag for those meticulously counting grams.
The Mythic range is all about slashing weight wherever possible. The Mythic 400 is an extremely lightweight three-season bag. At home in high mountains, it’s ideal for venturing out long Alpine routes, multi-day climbs, treks, or bikepacking adventures.
Weighing in at just 700g, it contains 400g of 900FP goose down. The chevron style baffle design keeps the down in position, optimising core warmth and reducing the amount of fabric needed compared to traditional horizontal baffles. The outer is made from our own wind- and water-resistant, recycled Atmos™ fabric. The bag has a narrow mummy shape to minimise bulk, lightweight zips and pullers, and comes with a lightweight, waterproof, roll-top compression sack for protection from the elements and a small pack size while on the move.
The trapezoid boxwall baffle construction allows the down to fully loft, eliminates cold spots, and maximises warmth. It has an additional, adjustable baffle around the neck and an internal baffle along the length of the zip, both designed stop the heat from escaping. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth.
- Weight:700g/24.7oz
- Insulation:900FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (400g / 14.1oz)
- Main Fabric:10D Recycled Atmos™ (27gsm) with Fluorocarbon-Free DWR
- Fabric Lining:Lining: 10D Recycled Atmos™ (27gsm) with Fluorocarbon-Free DWR
- EN (13537:2012) Temperature rating:ISO EN: Comfort: -1°C (30°F), Limit: -6°C (21°F), Extreme: -24°C (-11°F)
- Rab Sleep Limit:-6°C / 21°F
- Packed Size:35cm x 23cm (13.8in x 9.1in)
- Product Code:QSI-45
- Weight saving chevron baffle design, reduces down migration and optimises core warmth.
- Trapezoidal boxwall construction with differential cut, to maximise loft and warmth
- Close fitting adjustable neck baffle design for decreased heat loss
- YKK® 3/4 length main zip with synthetic filled baffle to trap warmth
- YKK® zipped internal stash pocket
- Angled foot box for relaxed sleeping posture
- Anti-snag bonded zip guard
- Lightweight waterproof roll-top compression sack included
Sleeping Bag Size Guide
| Tapered Mummy | Regular |
|---|---|
| Sleeping Bag Length | 215cm / 84.6in |
| Max User Height | 185cm / 72.8in |
| Internal Shoulder Girth | 160cm / 63.0in |
| Internal Hip Girth | 134cm / 52.8in |
| Internal Foot Girth | 102cm / 40.2in |
| Pack Size | 35cm x 23cm |
Material facts
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Material Facts
Mythic 400 Down Sleeping Bag (-6C)
| Total Recycled Content* | 38% |
| Fabric | 100% |
| Hydrophobic Down | 0% |
| Zips | 37% |
| Trims | 8% |
| Fluorocarbon Content | |
| Fabric | No |
| Hydrophobic Down | No |
| Zips | Yes |
| Trims | No |
| Manufactured in United Kingdom | |
| *Calculations based upon the weight of a regular length sleeping bag. | |
