Rab Unisex Ascent 300 Down Sleeping Bag From £210.00


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  • Product Description
  • Customer Reviews
  • Manufacturer Size Chart
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Rab Ascent 300 Down Sleeping Bag 1C / 35F - Unisex's

A 650FP duck down sleeping bag with a recycled, wind resistant Pertex® Quantum outer. Designed with a comfortable wide shape, it's ideal for those buying their first down sleeping bag for use in summer conditions.

The Ascent 300 is a versatile, summer bag with a comfortable, wide mummy fit. Filled with 300g of 650FP goose down and with space for wearing additional layers if needed, this bag is perfect for summer climbing trips or bothy-based adventures in mild conditions.

The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth.

The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught.

Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or a headlamp, a cotton storage sack and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together.

Sleeping Bag Size Guide:

Wide Mummy Shape - Unisex's / Men's

  Regular Long Wide Long Wide
Sleeping Bag Length 215cm / 84.6 in 230cm / 90.6 in 215cm / 84.6 in 230cm / 90.6 in
Max User Height 185cm / 72.8 in 200cm / 78.7 in 185cm / 72.8 in 200cm / 78.7 in
Internal Shoulder Girth 160cm / 63.0 in 162cm / 63.8 in 180cm / 70.9 in 182cm / 71.7 in
Internal Hip Girth 134cm / 52.8 in 136cm / 53.5 in 146cm / 57.5 in 148cm / 58.3 in
Internal Foot Girth 108cm / 42.5 in 110cm / 43.3 in 116cm / 45.7 in 118cm / 46.5 in
Pack Size 30 x 18 cm / 11.8 x 7.1 in 30 x 18 cm / 11.8 x 7.1 in 30 x 18 cm / 11.8 x 7.1 in 30 x 18 cm / 11.8 x 7.1 in

Features:

  • Rab Sleep Limit: 1°C / 35°F
  • Pack Size: 30 X 18 cm / 11.8 X 7.1 in
  • General Use
  • Comfortable
  • 650 Fill Power RDS Certified European Goose Down with Nikwax fluorocarbon-free Hydrophobic Finish
  • Trapezoidal boxwall construction with differential cut, to maximise loft and warmth
  • 3-dimensional shaped neck collar to seal in warmth
  • YKK 3/4 length main zip with down filled baffle to trap warmth
  • YKK zipped internal stash pocket
  • YKK Anti-snag zip insert and anti snag internal zip guard
  • Angled foot box for relaxed sleeping posture
  • Left and right hand bags can zip together
  • Zipped cotton sack with water-resistant base for home storage
  • Drawcord stuffsack included
  • Wide mummy shape - A more generous cut for added comfort while you sleep with space to move your legs. These bags will increase in bulk and weight but allow a more relaxed sleeping position.
  • Zip Sides:
    • Right Hand Zip (RHZ)
    • Left Hand Zip (LHZ)
  • Weight:
    • Reg: 840g / 29.6oz
    • Long: 895g / 31.6oz
  • Suitable for:
    • Multi-day Trekking
    • Fast & Light Adventures
    • Camping
  • Performance*:
    • Lightness: 4/5
    • Pazk Size: 1/5
    • Environment Use: 1/5 - Mild

*These ratings compare Rab products to each other. All Rab products, at any rating, are of the highest quality.

Technical Features:

  • Rab Sleep Limit: 1°C / 35°F
  • EN (13537:2012) Temperature rating:ISO EN:
    • Comfort: 5°C / 41°F
    • Limit: 0°C / 32°F
    • Extreme: -15°C / 5°F
  • Pack Size: 30 X 18 cm / 11.8 X 7.1 in
  • Outer: 30D Recycled Pertex® Quantum (50gsm) with fluorocarbon-free DWR, 100% recycled polyamide, 
  • Lining: 20D Recycled Nylon (38gsm), 100% recycled polyamide
  • Fill Power: 650FP R.D.S Certified European Goose Down with Nikwax fluorocarbon-free Hydrophobic Finish
  • Product Code: QSD-34

Rab Ascent Collection - The Ascent series is designed for wild campers, adventure backpackers, and  draughty Scottish bothies. Combining clever construction to optimise warmth with a generous fit, it ensures a comfortable night’s sleep for the weary mountain explorer.

Pertex® Quantum fabric - A soft, lightweight, windproof fabric that encourages insulation to fully loft. Highly packable and protective, it's ideal for mountain activities.

Fill Power: 650 Down - Fill power is all about down quality, not quantity. Find out more about what fill power means for you when you're out in the mountains in cold conditions.

RDS Certified Down - The Responsible Down Standard independently certifies down against animal welfare requirements and tracks it from the source to the final product.

Fluorocarbon-Free DWR - A durable water repellent coating made without harmful fluorocarbons, that encourages water to bead and roll off the garment, keeping you dry. Find out more about why we're cutting out fluorocarbons from our gear

Rab Sleep Limit Explained - Need help choosing the right bag for your next adventure? This is our real-world assessment of a sleeping bag's usable temperature limit. At Rab, we use the EN ISO 23537 standard to rate most of our sleeping bags. This standard is in place to help give baseline temperature measurements of sleeping bags across the industry. The EN ISO test produces a series of temperature limits which are described as: 

  • The Comfort Rating indicates the minimum temperature where an individual can sleep in a relaxed position and get a good night’s sleep.
  • The Limit of Comfort Rating is the temperature range where an individual sleeping in a curled position and fighting against the cold can still sleep through the night.
  • The Extreme Rating is for an emergency scenario – it’s the minimum temperature a person can remain in the sleeping bag for up to six hours in a curled position while really fighting against the cold. It’s worth bearing in mind that frostbite at these temperatures is very possible.

Fair Wear Foundation - Together with Fair Wear Foundation (FWF), Rab are working to achieve fair working conditions worldwide. Our production gives employment to over 20,000 people.

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