Rab Ascent -18°C Sleeping Bag | Down Winter Trekking Bag

Description

The Rab Ascent -18°C is a down sleeping bag designed to offer a solid balance of thermal protection, comfort, and durability in winter conditions. Within the Rab range, the Ascent series is characterized by a wider construction than technical alpine bags, prioritizing a more comfortable and less restrictive resting experience.

Real technical performance

With a comfort temperature of -10°C and a limit of -18°C, this bag is clearly oriented toward winter trekking, cold mountain environments, and bivy use in demanding conditions. It is a very reliable option for multi-day routes where a good night's sleep is key.

The combination of 650FP European duck down with a hydrophobic treatment and the L.O.F.T.™ construction allows for a stable loft, reducing cold spots and ensuring consistent insulation throughout the night.

Quantitative technical specifications

• Model: QSN-05
• Comfort temperature: -10°C
• Limit temperature: -18°C
• Extreme temperature: -40°C
• Total weight: 1650 g (REG)
• Down fill weight: 880 g
• Down: 650FP European duck down
• Outer fabric: 20D Pertex® Quantum
• Lining: 20D recycled nylon

Comparison within the range

The Ascent -18°C is one of the most balanced models in the range:

• Warmer than the -12°C: better prepared for real winter.
• More comfortable than Alpine or Neutrino: greater internal volume.
• Less extreme than the -24°C: more versatile and usable in more scenarios.

You can also compare: Rab Ascent -12°C Sleeping Bag · Rab Ascent -24°C Sleeping Bag · Rab Ascent range.

Recommended use

Winter trekking, cold mountain routes, bivouacking, and trips where nighttime insulation is critical.

Is it for you?

Yes if you are looking for a warm, reliable, and comfortable bag for winter.

No if you are looking for minimum weight or a technical fast-and-light mountaineering bag.