Ascent 0C/32F Long Lightweight Down Sleeping Bag

About the Rab Ascent 0C/32F Long

What is the Rab Ascent 0C/32F Lightweight Down Sleeping Bag good for?

Built for spring and summer backpacking and trekking, the Rab Ascent 0C balances ultralight materials with 650 fill power down insulation to deliver practical comfort with a packable design and first-class warmth-to-weight performance.

How will some of the key features of the Rab Ascent 0C/32F Lightweight Down Sleeping Bag enhance my experience?

Innovative L.O.F.T 3D baffle technology uses alternating wide and narrow baffles for optimised heat retention and reduced pack size for streamlined mountain travel. In addition, sidewall baffle construction helps reduce cold spots, with a drawcord-adjustable, anatomical hood ensuring a secure fit for maximum thermal efficiency during cooler mountain nights. The updated design features a second shorter zip with integrated snap closure, allowing you to free your arms while maintaining sleeping bag warmth – perfect for prepping meals on a cold morning. The sleeping bag also features an anatomically shaped footbox that creates a relaxed sleeping posture whilst the 3D insulated neck collar contours around your shoulders to seal in body heat and prevent cold drafts from entering. Additionally, the 2-way YKK 3/4 length main zip with down-filled baffle provides versatile temperature control whilst maintaining high-loft insulation behind the zipper.

Why choose the Rab Ascent 0C/32F Lightweight Down Sleeping Bag?

Rab unleashes decades of mountain equipment expertise, ensuring this sleeping bag tackles real-world mountain conditions with proven performance. Additionally, RDS certified 650 fill power duck down delivers ethical sourcing standards whilst maintaining powerful insulation-to-weight ratios. Hand-filled in the UK, all Rab sleeping bags benefit from never having had their down compressed before use to preserve loft and warmth.

• L.O.F.T 3D Baffle Technology – Reduces down migration, optimising heat retention and reducing pack size
• Sidewall Baffle – For increased down loft and greater side sleeping comfort
• Anatomical Hood – With drawcord adjustment to maximise comfort and heat retention
• Internal Cordlocks – Positioned below the collar bone for greater side sleeping comfort
• Anatomically Shaped Foot Box – For a relaxed sleeping posture
• 3D Insulated Neck Collar – An ergonomically shaped barrier contours around your shoulders to effectively seal in body heat and prevent cold drafts from entering
• 2-Way YKK Zip 3/4 Length Main Zip with Synthetic-filled Baffle – Allow for customisable ventilation and durable, moisture-resistant protection against cold spots
• Includes – Drawcord stuff sack for travel and zipped storage sack with water-resistant base for home storage.

The Lowdown

• Style: Tapered Shape
• Materials: 20D Pertex Quantum nylon ripstop
• Capacity: Single
• Suitable For: 1-2 seasons – spring, summer
• Temperature Comfort Range: 5°C | 41°F
• Temperature Lower Limit: 0°C | 32°F
• Temperature Extreme (Risk Range): -7°C | 19°F
• Special Features: Footbox
• Eco-Credentials: RDS Certified Down

Ascent 0C/32F Long Size Chart