Rab Ascent 500

From £207.00
£230.00
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An excellent value sleeping bag suitable for temperatures around 1ºC and made with 650 US fill power duck down and Pertex® inner and outer fabric.

Rab Ascent 500

Left Long
£225.00
£250.00
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3 In Stock
Left Women's
£207.00
£230.00
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2 In Stock
Right Regular
£207.00
£230.00
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1 In Stock

NB Rab have change the colours of these sleeping bags - please see photos for old and new, the new being the somewhat drabber colours. In all other respects they are unchanged. We have a mixture of stock so please tell us if the colour is important when you order and we'll see what we have.

An excellent value sleeping bag suitable for temperatures around 1ºC and made with 650 US fill power duck down and Pertex® inner and outer fabric.

The Ascent range of sleeping bags from Rab are duck down filled performance sleeping bags designed for regular use. The bags use durable and lightweight Pertex Microlight fabrics. These bags offer fantastic value for money, quality build and construction, durability and low weight for warmth of the bags. The bags are designed in a semi rectangular shape that is more user friendly for general purpose use or for those buying their first down bag.

  • Pertex® Quantum (was called Microlight) inner and outer fabric.
  • 500g of 650 US Fill Power European Duck Down.
  • Rab® fluorocarbon free Hydrophobic Down developed in conjunction with Nikwax®.
  • Wide mummy shape.
  • Proportionally assigned differential cut.
  • Internal YKK 3 coil zipped stash pocket.
  • Wide foot area for extended comfort.
  • ¾ length YKK 5 coil main zip.
  • Left and right hand zips available.
  • Left and right hand zips will zip together.
  • Anti snag zipper webbing tape.
  • Internal collar and hood drawcord.
  • Improved close fitting neck baffle design.
  • Trapezoidal baffle chamber design.
  • Angled foot box.
  • Cotton storage sack.
  • Temperature tested to new European standard EN13537: 2012.
  • Hand filled in Derbyshire UK.

Rab Ascent 500 Internal Length Shoulder Width Hip Width Foot Width Weight
Regular 185cm (6' 1") 75cm 65cm 50cm 1040g
Long 200cm (6' 7") 75cm 65cm 50cm 1125g
Women's 170cm (5' 7") 73cm 67cm 50cm 1060g

Rab Ascent 500
Fill: 500g 650 US fill power European duck down
Comfort: 
Comfort Limit:
Extreme:  
1ºC
-4.5ºC
-22ºC


EN Sleeping Bag Temperature Ratings
EN13537 is the European standard for sleeping bags and requires a thermal manikin test which produces four temperature results — upper limit, comfort, lower limit and extreme. There is no legal obligation to use this standard though most reputable brands do, even non-European ones. There is an exemption for military sleeping bags and sleeping bags for extreme temperatures, ie a comfort range of below -25°C. 
Upper Limit: the temperature at which a standard man can sleep without excessive perspiration. It is established with the hood and zips open and with arms outside the bag.
Comfort: the temperature at which a standard woman can expect to sleep comfortably in a relaxed position.
Lower Limit: the temperature at which a standard man can sleep for eight hours in a curled position without waking.
Extreme: the minimum temperature at which a standard woman can remain for six hours without risk of death from hypothermia (though frostbite is still possible).
For the purpose of these measurements, a "standard man" is assumed to be 25 years old, with a height of 1.73m (ie 5' 7", not very tall) and a weight of 73kg; a "standard woman" is assumed to be 25 years old, with a height of 1.60m (ie 5' 2.5") and a weight of 60kg.

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