Rab Women's Ascent 500 Down Sleeping Bag (-5C)

The Ascent 500 is a highly adaptable sleeping bag, offering a spacious and comfortable wide mummy fit. Insulated with 500g of 650FP duck down, it provides warmth while allowing room for additional layers if required, making it well-suited for cooler conditions. Designed for two-season use, it is ideal for springtime adventures in climates similar to those found in the UK, New Zealand, or Scandinavia.

The women's specific design is slightly shorter in length, with a narrower fit at the shoulders and a wider shape around the hips to enhance thermal efficiency. Crafted with a lightweight yet durable recycled Pertex® Quantum outer fabric and a recycled nylon lining, the Ascent 500 is built for both performance and sustainability. Its trapezoid-shaped boxwall baffles are designed to stack neatly, allowing the hydrophobic duck down to fully loft while minimising cold spots. Hand-filled in the UK, each down bag retains its full loft and warmth, having never been compressed before use.

A generous mummy fit, complemented by a wide foot box, ensures a comfortable night’s sleep, while the close-fitting neck baffle helps to retain warmth when temperatures drop. The three-quarter-length main zip is accompanied by a down-filled baffle to prevent draughts from creeping in.

For added practicality, an internal zipped stash pocket offers secure storage for essentials such as a phone or headlamp. A cotton storage sack is included for long-term care, while a compression stuff sack ensures a compact pack size for travel. Those seeking additional space or wishing to connect bags together can pair a left-zip and right-zip version for a shared sleeping experience.

Features

• The outer shell is made from 30D recycled Pertex® Quantum (50 gsm) with a fluorocarbon-free durable water repellent (DWR) finish.
• The lining is constructed from 20D recycled nylon (38gsm) for a lightweight yet soft interior.
• Filled with 650FP European duck down, treated with a Nikwax fluorocarbon-free hydrophobic finish (1100g / 38.8oz).
• The trapezoidal boxwall construction with a differential cut enhances loft and maximises warmth.
• A three-dimensional neck collar effectively seals in heat.
• The YKK three-quarter-length main zip is paired with a down-filled baffle to trap warmth.
• An internal YKK zipped stash pocket provides secure storage for small essentials.
• Features a YKK anti-snag zip insert and an internal zip guard to prevent snagging.
• The angled foot box allows for a more relaxed sleeping position.
• Left-zip and right-zip bags can be joined together for added space.
• A zipped storage sack with a water-resistant base is included for safe home storage.
• A drawcord stuff sack ensures compact packing for travel.
• Outer and lining fabrics are made from 100% recycled polyamide.
• Designed with a wide mummy shape for enhanced comfort.
  
  

Sustainability Features

• Fluorocarbon (PFAS) free fabric
• Fluorocarbon (PFAS) free product
• Made with renewable energy
  
  

Specifications

Size Guide

Technology

Pertex® Quantum

This lightweight, windproof fabric is designed to enhance insulation by allowing it to achieve maximum loft. Offering exceptional packability and reliable protection, it is perfectly suited for mountain pursuits.

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