Rab Ascent -12C / 10F

Rab Ascent -12C / 10F is a rugged yet pack-friendly sleeping bag built to deliver dependable cold-weather warmth without unnecessary bulk. This three-season down sleeping bag is designed for trekking and backpacking, combining high-loft insulation with practical features that make nights outside more comfortable. Its wide mummy shape leaves room for sleeping in a relaxed position and adding extra layers when the temperature drops. Details like the adjustable hood, insulated neck baffle, and sidewall baffles help reduce drafts and cold spots for more consistent warmth through the night.

• Down-insulated three-season sleeping bag with a wide mummy shape for extra space and warmth retention
• Temperature rating ISO (23537-1:2022) with Comfort: -5 °C (23 °F), Limit: -12 °C (10 °F), Extreme: -33 °C (-27 °F)
• 650 fill power European duck down with Grangers fluorocarbon free hydrophobic finish for improved performance in damp conditions
• L.O.F.T construction with alternating baffle widths to balance heat efficiency and weight
• Sidewall baffles designed to minimize cold spots, especially for side sleepers
• Hood drawcord and synthetic insulated collar to seal warmth around the head and neck
• Two-way YKK ¾ length main zip with a synthetic-filled baffle to reduce heat loss along the zip
• YKK anti-snag zip insert and internal zip guard for smoother opening and closing
• Secondary short zip with snap closure lets arms move while keeping more heat inside the bag
• Zipped internal stash pocket for small essentials
• Drawcord stuff sack included plus a zipped storage sack with a water-resistant base for storing at home
• Fluorocarbon (PFAS) free fabric and fluorocarbon (PFAS) free product, made with renewable energy

Technical Features
Temperature rating: ISO (23537-1:2022)
Comfort: -5 °C (23 °F)
Limit: -12 °C (10 °F)
Extreme: -33 °C (-27 °F)

Weight
1,35 kg (2 lb 15.62 oz) (Regular)

Dimensions
Packed size: 22 x 40 cm (8.7 x 15.8 in) (Regular)

Materials
Main fabric: 20d pertex quantum nylon ripstop (38 g/m²) with fluorocarbon free DWR
Lining: recycled 20d nylon (38 g/m²)
Insulation: 650 fill power European duck down with Grangers fluorocarbon free hydrophobic finish (680 g / 24.0 oz)