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Rab Ascent Down Sleeping Bag -18°C/0°F - Long
C$
544
.99
Colour
Size
Size
OS



Looking for a sleeping bag that prioritises warmth, comfort, and practicality? That will give you an easy night’s rest in the wild, without compromising on weight or pack size? This robust, reliable down-filled bag offers the versatility you need for regular mountain use. Armed with 650FP duck down, a spacious wide mummy shape, windproof Pertex® Quantum fabric, and a clever baffle construction that maximises warmth for weight, it's perfect for trekking and backpacking adventures.
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
• L.O.F.T™ construction uses alternating wide and narrow baffles to achieve great warmth for weight.
• Sleep comfortably on your side thanks to the sidewall baffles, which reduce cold spots and ensure you’re not lying on a seam.
• A second shorter zip with integrated snap closure allows you to use your arms while retaining heat in your sleeping bag, ideal for cooking in the cold.
• Cinch in the hood to seal in the heat, while the synthetic insulated collar sits snugly around your neck.
• Sleep in a relaxed, comfortable position thanks to the roomy, anatomically shaped foot box.
• Keep valuables and essentials close at hand with a zipped internal stash pocket.
• Wide mummy fit gives space for extra layers when night temperatures plummet.
• Internal cordlocks positioned below your collar bone for greater side sleeping comfort.
• Two-way YKK® ¾ length main zip with synthetic-filled baffle.
• YKK® anti-snag zip insert and anti-snag internal zip guard.
• Drawcord stuff sack included.
• Zipped storage sack with water-resistant base for home storage.
• Hand-filled in Derbyshire UK.
Materials
• Insulation: 650FP European duck down with Grangers fluorocarbon-free hydrophobic finish (880g / 31.0oz)
• Main fabric: 20D Pertex® Quantum nylon ripstop (38g/m²) with fluorocarbon-free DWR
• Fabric lining: Lining: Recycled 20D nylon, 38g/m²
Specifications
• Weight: 1650g/3lb 10.2oz
• ISO (23537-1:2022) temperature rating: Comfort: -10°C (14°F), Limit of comfort: -18°C (0°F), Extreme: -40°C (-40°F)
• Limit of Comfort: -18°C / 0°F
• Packed size: 26cm x 45cm (10.2in x 17.7in)
Measurements
• Sleeping bag length: Regular: 215cm(85 in), Long: 230cm(91 in)
• Max user height: Regular: 185cm(73 in), Long: 200cm(79 in)
• Internal shoulder girth: Regular: 170cm(67 in), Long: 172cm(68 in)
• Internal hip girth: Regular: 140cm(55 in), Long: 142cm(56 in)
• Internal foot girth: Regular: 108cm(43 in), Long: 110cm(43 in)
Looking for a sleeping bag that prioritises warmth, comfort, and practicality? That will give you an easy night’s rest in the wild, without compromising on weight or pack size? This robust, reliable down-filled bag offers the versatility you need for regular mountain use. Armed with 650FP duck down, a spacious wide mummy shape, windproof Pertex® Quantum fabric, and a clever baffle construction that maximises warmth for weight, it's perfect for trekking and backpacking adventures.
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
• L.O.F.T™ construction uses alternating wide and narrow baffles to achieve great warmth for weight.
• Sleep comfortably on your side thanks to the sidewall baffles, which reduce cold spots and ensure you’re not lying on a seam.
• A second shorter zip with integrated snap closure allows you to use your arms while retaining heat in your sleeping bag, ideal for cooking in the cold.
• Cinch in the hood to seal in the heat, while the synthetic insulated collar sits snugly around your neck.
• Sleep in a relaxed, comfortable position thanks to the roomy, anatomically shaped foot box.
• Keep valuables and essentials close at hand with a zipped internal stash pocket.
• Wide mummy fit gives space for extra layers when night temperatures plummet.
• Internal cordlocks positioned below your collar bone for greater side sleeping comfort.
• Two-way YKK® ¾ length main zip with synthetic-filled baffle.
• YKK® anti-snag zip insert and anti-snag internal zip guard.
• Drawcord stuff sack included.
• Zipped storage sack with water-resistant base for home storage.
• Hand-filled in Derbyshire UK.
Materials
• Insulation: 650FP European duck down with Grangers fluorocarbon-free hydrophobic finish (880g / 31.0oz)
• Main fabric: 20D Pertex® Quantum nylon ripstop (38g/m²) with fluorocarbon-free DWR
• Fabric lining: Lining: Recycled 20D nylon, 38g/m²
Specifications
• Weight: 1650g/3lb 10.2oz
• ISO (23537-1:2022) temperature rating: Comfort: -10°C (14°F), Limit of comfort: -18°C (0°F), Extreme: -40°C (-40°F)
• Limit of Comfort: -18°C / 0°F
• Packed size: 26cm x 45cm (10.2in x 17.7in)
Measurements
• Sleeping bag length: Regular: 215cm(85 in), Long: 230cm(91 in)
• Max user height: Regular: 185cm(73 in), Long: 200cm(79 in)
• Internal shoulder girth: Regular: 170cm(67 in), Long: 172cm(68 in)
• Internal hip girth: Regular: 140cm(55 in), Long: 142cm(56 in)
• Internal foot girth: Regular: 108cm(43 in), Long: 110cm(43 in)