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 sleeping experience.

Actual technical performance

With a comfort temperature of -10°C and a limit of -18°C, this bag is clearly geared towards winter trekking, cold mountain conditions, and bivouacs in demanding environments. It is a very reliable option for multi-day trips where nighttime rest is key.

The combination of 650FP European duck down with a hydrophobic treatment and the L.O.F.T.™ construction helps maintain stable loft, reducing cold spots and ensuring homogeneous 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 within 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.

Recommended use

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

Is it for you?

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

No if you are looking for minimum weight or a fast technical alpine sleeping bag.