Rab Ascent -24C / -11F Women's Sleeping Bag

Description

The Rab Ascent -24C / -11F Wmns is a down sleeping bag designed for winter mountaineering, cold traverses, and bivouacs where real comfort, robustness, and ease of use are as important as thermal capacity. Within the Rab range, the Ascent family prioritizes a wide mummy shape, a spacious footbox, and a less restrictive feel than other more alpine models, making it a great fit for users seeking serious warmth without sacrificing freedom of movement while sleeping.

This women's version is geared towards very cold conditions, with a construction focused on maintaining loft, reducing down migration, and offering a more stable night's rest when the terrain, temperature, or humidity challenge the equipment. It's a bag for winter trekking, multi-day trips, and regular use in cold mountains, not a minimalist fast & light model.

Real Technical Performance

The performance of the Ascent -24C Wmns is based on a very logical combination for real mountain use: 650FP European duck down, L.O.F.T.™ construction to optimize thermal retention, and an internal geometry that promotes extended rest. Compared to narrower or more radical bags, Rab here opts for an approach of comfort and practicality: greater internal space, a secondary zipper to use arms without losing as much heat, a thermal collar with synthetic insulation, and details designed for long, cold nights.

The result is a particularly interesting bag for users who don't want the confined feeling of a very tight alpine model. It provides a large thermal reserve and a construction aimed at maintaining performance with continuous use. The Regular version weighs 1870 g, while the Long goes up to 1900 g, making it still a bag with a clear thermal and light expedition focus, not an ultralight one.

Quantitative Technical Specifications (Rab Equipment)

• Product Code: QSN-27
• Comfort Temperature: -15°C / 5°F
• Limit Temperature: -24°C / -11°F
• Extreme Temperature: -49°C / -56°F
• Fill: 650FP European duck down with fluorocarbon-free hydrophobic finish developed with Nikwax®
• Reference Total Weight: 1870 g (Regular)
• Long Version Total Weight: 1900 g
• Down Quantity: 1080 g (Regular) / 1120 g (Long)
• Main Outer Fabric: 20D Pertex® Quantum nylon ripstop with fluorocarbon-free DWR
• Lining: 20D recycled nylon
• Compression Sack Size: XL
• Length: 200 cm (Regular) / 215 cm (Long)
• Shoulder Width: 80 cm
• Hip Width: 76 cm
• Foot Width: 60 cm
• Inner Shoulder Girth: 166 cm (Regular) / 168 cm (Long)
• Inner Hip Girth: 138 cm (Regular) / 140 cm (Long)
• Inner Foot Girth: 108 cm (Regular) / 110 cm (Long)

Comparison within the Range

Within the Rab universe, the Ascent plays a different role from the Alpine, Neutrino, or Mythic families. It doesn't aim to be the lightest or most technical bag for fast alpinism, but rather one of the most comfortable and usable for those who spend real nights in the mountains and want very high thermal protection.

Compared to the Alpine, the Ascent offers a more spacious and comfortable feel for sleeping. Compared to the Neutrino, it sacrifices some of the alpine orientation and pure warmth-to-weight focus in exchange for a more comfortable and less demanding experience. And compared to the Mythic, it is clearly positioned as a more robust, less minimalist option, and more oriented towards winter trekking or prolonged use.

Recommended Use

• Winter trekking
• Backpacking in very cold conditions
• Bivouacs and shelters with serious temperatures
• Users who prioritize internal comfort and thermal reserve
• Multi-day trips where a good night's rest is key

Is it for you?

Yes, if you are looking for a very warm women's sleeping bag, with a cold-mountain focus, spacious inside, and designed for better sleep over several consecutive nights.

No, if your absolute priority is to minimize weight and volume for fast alpinism or ultralight trips. In that case, it makes more sense to look at an option from the Neutrino or Mythic family.