Rab Ascent -12°C Sleeping Bag - Blue

The Rab Ascent -12°C Sleeping Bag is designed for warmth and comfort during cold nights outdoors. ...

Best current price£287.95from Runners Need

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Runners NeedWomen's Rab Ascent -12ºc Sleeping Bag
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£287.95
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TisoRab Women's Ascent -12°C Sleeping Bag - Sleeping Bags - Blue - Size L-Zip - Women's
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£360.00
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Product Information

Full details

The Rab Ascent -12°C Sleeping Bag is designed for cold-weather campers and backpackers seeking reliable warmth and comfort down to -12°C (10°F). Its primary benefit is the high-quality European duck down insulation combined with a thoughtful design for heat retention and comfort, ensuring a good night's sleep in challenging conditions. A potential consideration is its weight (1330g), which might be a factor for ultralight backpackers. Key features include 650FP down fill, a mummy shape with an anatomically shaped foot box, an adjustable hood, and durable, water-resistant Pertex Quantum ripstop shell.

All features

MaterialNylon
Model Part Number003973509
BrandRab

Extended Product Information

FAQs

What is the temperature rating of the Rab Ascent -12°C Sleeping Bag?

According to ISO 23537-2:2022 standards, the temperature ratings are: Comfort 5°C (41°F), Limit -12°C (10°F), and Extreme -33°C (-27°F).

How should I store the sleeping bag when not in use?

Store the sleeping bag loosely in the provided zipped storage sack, not the compressed stuff sack. This helps maintain the down's loft and longevity.

Can I wash the sleeping bag?

Yes, it can be washed using a front-loading machine on a gentle cycle with cool water and a down-specific cleaner. Avoid fabric softener and bleach. Always tumble dry on very low heat with dryer balls.

What type of down is used?

The bag is filled with 650 Fill Power (FP) European duck down, treated with a Grangers fluorocarbon-free hydrophobic finish.

What is the weight of the sleeping bag?

The Rab Ascent -12°C Sleeping Bag weighs approximately 1330 g (2 lb 14.91 oz).

Is the down treated to resist moisture?

Yes, the 650FP European duck down has a Grangers fluorocarbon-free hydrophobic finish, which helps it resist moisture and maintain loft in damp conditions.

What is the material of the shell and lining?

The shell is made from 20D Pertex® Quantum nylon ripstop with a fluorocarbon-free DWR finish. The lining is recycled 20D nylon.

Troubleshooting

Down clumping after washing

Ensure the bag is thoroughly dried on a very low heat setting in a tumble dryer with dryer balls to help break up clumps and restore loft.

Zipper snags frequently

Use the YKK® anti-snag zip insert and the internal zip guard. Gently guide the zipper, and if it snags, carefully ease the fabric away before continuing.

Reduced loft and warmth

The down may have absorbed moisture or become compressed. Ensure the bag is fully dried and lofted according to care instructions. Consider professional cleaning if extensive.

Feeling cold at rated temperatures

Verify the sleeping pad used has adequate insulation (R-value). Consider wearing thermal base layers and a hat inside the bag. Ensure the hood and collar are properly adjusted to seal in heat.

Pros and Cons

Pros

  • Excellent warmth for its weight due to high-quality down.
  • Thoughtful design features enhance comfort and heat retention.
  • Durable and water-resistant shell material.
  • Includes practical stuff sack for portability.
  • Suitable for a wide range of 3-season conditions.

Cons

  • Weight may be a consideration for ultralight backpackers.
  • Requires careful storage and maintenance to preserve down loft.
  • May not be warm enough for extreme winter conditions beyond its rated limit.

Setup, Compatibility & Care

Setup: Unpack the sleeping bag from its stuff sack. Gently shake it out to allow the down to loft. For optimal warmth, let it air out for a few hours before use, especially if it has been compressed for an extended period. Ensure the main zipper is fully functional before climbing in.

Compatibility: This sleeping bag is designed to be used with a sleeping pad for insulation from the ground. The temperature ratings are based on ISO 23537-2:2022 standards, but individual comfort can vary based on metabolism, clothing worn, and the R-value of the sleeping pad used. It is compatible with most standard sleeping pads.

Care: To maintain performance, store the sleeping bag loosely in the provided storage sack, not the stuff sack. When washing is necessary, use a front-loading washing machine on a gentle cycle with cool water and a down-specific cleaner. Do not use fabric softener or bleach. Tumble dry on a very low heat setting with clean tennis balls or dryer balls to help break up clumps and restore loft. Ensure the bag is completely dry before storing.

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