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Rab Mythic Ultra Down Sleeping Bag -6°C/21°F
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Our Mythic sleeping bags redefine warmth for weight, meticulously shaving grams and minimising pack size to bring you performance without penalty.
Every detail of the Mythic has been designed to reduce weight and bulk, drawing on over 40 years of hard-won expertise. It’s filled with high-quality 900FP down, which offers superb warmth for its weight, in our groundbreaking L.O.F.T 3D™ construction. This unique technology uses twisted, helix-shaped baffles to create funnel points within the bag, which prevent down from migrating and keep it evenly distributed. Combined with a TILT lining that reflects heat back towards your body, this allows us to achieve an unrivalled warmth-to-weight ratio. Light on grams but not on functionality, the Mythic is finished with a Pertex® Quantum ripstop fabric to ensure it stands up to mountain environments. Ultralight, stripped-back, and uncompromisingly warm, it’s ideal for moving fast in cool conditions, from fastpacking to alpinism. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, preserving its loft and warmth.
Features
• Activities: Fast & light adventures, Trekking
• Pioneering L.O.F.T 3D™ construction features helix-shaped baffles that prevent down migration and maximise warmth retention
• Built with a heat-reflective TILT lining, minimising radiant heat loss for virtually no extra weight
• Sleep comfortably on your side thanks to the sidewall baffles, which reduce cold spots and ensure you’re not lying on a seam
• Cinch in the hood to seal in the heat, while the down-filled collar sits snugly around your neck
• The tapered mummy shape is incredibly efficient on pack size
• ½ length zip features an insulated zip baffle to prevent cold spots when the temperature drops
• Internal cordlocks positioned below your collar bone for greater side sleeping comfort
• Anatomically shaped foot box allows you to sleep in a relaxed position
• Lightweight dry bag compression stuff sack
• Zipped storage sack with water-resistant base for home storage
• Hand-filled in Derbyshire UK
• Fluorocarbon(PFAS)free fabric
• Fluorocarbon(PFAS)free product
• Made with renewable energy
Materials
• Main: 10D Pertex® Quantum Ripstop(26g/m²)with fluorocarbon-free DWR
• Insulation: 900FP European goose down with Grangers fluorocarbon-free hydrophobic finish
• Lining: 10D Recycled Atmos™(28gsm)with Thermo Ionic Lining Technology(TILT)
Specifications
• ISO(23537-2:2022)temperature rating: Comfort: 0°C(32°F), Limit of comfort: -6°C(21°F), Extreme: -24°C(-11°F)
Performance
• Lightness: 5/5
• Pack size: 5/5
• Environment use: 2/5
Every detail of the Mythic has been designed to reduce weight and bulk, drawing on over 40 years of hard-won expertise. It’s filled with high-quality 900FP down, which offers superb warmth for its weight, in our groundbreaking L.O.F.T 3D™ construction. This unique technology uses twisted, helix-shaped baffles to create funnel points within the bag, which prevent down from migrating and keep it evenly distributed. Combined with a TILT lining that reflects heat back towards your body, this allows us to achieve an unrivalled warmth-to-weight ratio. Light on grams but not on functionality, the Mythic is finished with a Pertex® Quantum ripstop fabric to ensure it stands up to mountain environments. Ultralight, stripped-back, and uncompromisingly warm, it’s ideal for moving fast in cool conditions, from fastpacking to alpinism. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, preserving its loft and warmth.
Features
• Activities: Fast & light adventures, Trekking
• Pioneering L.O.F.T 3D™ construction features helix-shaped baffles that prevent down migration and maximise warmth retention
• Built with a heat-reflective TILT lining, minimising radiant heat loss for virtually no extra weight
• Sleep comfortably on your side thanks to the sidewall baffles, which reduce cold spots and ensure you’re not lying on a seam
• Cinch in the hood to seal in the heat, while the down-filled collar sits snugly around your neck
• The tapered mummy shape is incredibly efficient on pack size
• ½ length zip features an insulated zip baffle to prevent cold spots when the temperature drops
• Internal cordlocks positioned below your collar bone for greater side sleeping comfort
• Anatomically shaped foot box allows you to sleep in a relaxed position
• Lightweight dry bag compression stuff sack
• Zipped storage sack with water-resistant base for home storage
• Hand-filled in Derbyshire UK
• Fluorocarbon(PFAS)free fabric
• Fluorocarbon(PFAS)free product
• Made with renewable energy
Materials
• Main: 10D Pertex® Quantum Ripstop(26g/m²)with fluorocarbon-free DWR
• Insulation: 900FP European goose down with Grangers fluorocarbon-free hydrophobic finish
• Lining: 10D Recycled Atmos™(28gsm)with Thermo Ionic Lining Technology(TILT)
Specifications
• ISO(23537-2:2022)temperature rating: Comfort: 0°C(32°F), Limit of comfort: -6°C(21°F), Extreme: -24°C(-11°F)
Performance
• Lightness: 5/5
• Pack size: 5/5
• Environment use: 2/5
Our Mythic sleeping bags redefine warmth for weight, meticulously shaving grams and minimising pack size to bring you performance without penalty.
Every detail of the Mythic has been designed to reduce weight and bulk, drawing on over 40 years of hard-won expertise. It’s filled with high-quality 900FP down, which offers superb warmth for its weight, in our groundbreaking L.O.F.T 3D™ construction. This unique technology uses twisted, helix-shaped baffles to create funnel points within the bag, which prevent down from migrating and keep it evenly distributed. Combined with a TILT lining that reflects heat back towards your body, this allows us to achieve an unrivalled warmth-to-weight ratio. Light on grams but not on functionality, the Mythic is finished with a Pertex® Quantum ripstop fabric to ensure it stands up to mountain environments. Ultralight, stripped-back, and uncompromisingly warm, it’s ideal for moving fast in cool conditions, from fastpacking to alpinism. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, preserving its loft and warmth.
Features
• Activities: Fast & light adventures, Trekking
• Pioneering L.O.F.T 3D™ construction features helix-shaped baffles that prevent down migration and maximise warmth retention
• Built with a heat-reflective TILT lining, minimising radiant heat loss for virtually no extra weight
• Sleep comfortably on your side thanks to the sidewall baffles, which reduce cold spots and ensure you’re not lying on a seam
• Cinch in the hood to seal in the heat, while the down-filled collar sits snugly around your neck
• The tapered mummy shape is incredibly efficient on pack size
• ½ length zip features an insulated zip baffle to prevent cold spots when the temperature drops
• Internal cordlocks positioned below your collar bone for greater side sleeping comfort
• Anatomically shaped foot box allows you to sleep in a relaxed position
• Lightweight dry bag compression stuff sack
• Zipped storage sack with water-resistant base for home storage
• Hand-filled in Derbyshire UK
• Fluorocarbon(PFAS)free fabric
• Fluorocarbon(PFAS)free product
• Made with renewable energy
Materials
• Main: 10D Pertex® Quantum Ripstop(26g/m²)with fluorocarbon-free DWR
• Insulation: 900FP European goose down with Grangers fluorocarbon-free hydrophobic finish
• Lining: 10D Recycled Atmos™(28gsm)with Thermo Ionic Lining Technology(TILT)
Specifications
• ISO(23537-2:2022)temperature rating: Comfort: 0°C(32°F), Limit of comfort: -6°C(21°F), Extreme: -24°C(-11°F)
Performance
• Lightness: 5/5
• Pack size: 5/5
• Environment use: 2/5
Every detail of the Mythic has been designed to reduce weight and bulk, drawing on over 40 years of hard-won expertise. It’s filled with high-quality 900FP down, which offers superb warmth for its weight, in our groundbreaking L.O.F.T 3D™ construction. This unique technology uses twisted, helix-shaped baffles to create funnel points within the bag, which prevent down from migrating and keep it evenly distributed. Combined with a TILT lining that reflects heat back towards your body, this allows us to achieve an unrivalled warmth-to-weight ratio. Light on grams but not on functionality, the Mythic is finished with a Pertex® Quantum ripstop fabric to ensure it stands up to mountain environments. Ultralight, stripped-back, and uncompromisingly warm, it’s ideal for moving fast in cool conditions, from fastpacking to alpinism. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, preserving its loft and warmth.
Features
• Activities: Fast & light adventures, Trekking
• Pioneering L.O.F.T 3D™ construction features helix-shaped baffles that prevent down migration and maximise warmth retention
• Built with a heat-reflective TILT lining, minimising radiant heat loss for virtually no extra weight
• Sleep comfortably on your side thanks to the sidewall baffles, which reduce cold spots and ensure you’re not lying on a seam
• Cinch in the hood to seal in the heat, while the down-filled collar sits snugly around your neck
• The tapered mummy shape is incredibly efficient on pack size
• ½ length zip features an insulated zip baffle to prevent cold spots when the temperature drops
• Internal cordlocks positioned below your collar bone for greater side sleeping comfort
• Anatomically shaped foot box allows you to sleep in a relaxed position
• Lightweight dry bag compression stuff sack
• Zipped storage sack with water-resistant base for home storage
• Hand-filled in Derbyshire UK
• Fluorocarbon(PFAS)free fabric
• Fluorocarbon(PFAS)free product
• Made with renewable energy
Materials
• Main: 10D Pertex® Quantum Ripstop(26g/m²)with fluorocarbon-free DWR
• Insulation: 900FP European goose down with Grangers fluorocarbon-free hydrophobic finish
• Lining: 10D Recycled Atmos™(28gsm)with Thermo Ionic Lining Technology(TILT)
Specifications
• ISO(23537-2:2022)temperature rating: Comfort: 0°C(32°F), Limit of comfort: -6°C(21°F), Extreme: -24°C(-11°F)
Performance
• Lightness: 5/5
• Pack size: 5/5
• Environment use: 2/5