Rab Ascent Down Sleeping Bag -18°C/0°F

When comfort and uninterrupted rest are your highest priority, this warm, robust sleeping bag offers dependable refuge for trekking and backpacking.

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
• Activities: Camping, Trekking
• 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
• Fluorocarbon(PFAS)free fabric
• Fluorocarbon(PFAS)free product
• Made with renewable energy

Materials
• Main: 20D Pertex® Quantum Nylon Ripstop(38g/m²)with fluorocarbon-free DWR
• Insulation: 650FP European duck down with Grangers fluorocarbon-free hydrophobic finish
• Lining: Recycled 20D Nylon, 38g/m²

Specifications
• ISO(23537-2:2022)temperature rating: Comfort: -10°C(14°F), Limit of comfort: -18°C(0°F), Extreme: -40°C(-40°F)
Performance
• Lightness: 3/5
• Pack size: 1/5
• Environment use: 4/5