Vertex Racebag Down Sleeping Bag

A super lightweight for summer lightpacking or racing. The whole shell is made from our new 18g/m2 Vertex, the lightest of all our fabrics. Box-wall top, stitch-through base.

Typical Operating Temperature
Guideline minimum temperature. Sleeping Bag TOT: you should get a night’s sleep, under normal circumstances. Clothing TOT: you should feel warm enough, assuming low/moderate activity. Sleep System TOT: relates to full system. For more details, see our Technical Briefing.
8°C / 46.4°F
For clothing, weight is for size: M. For sleeping bags, weight changes with selected length/width. N.B. there may be some variation in the weights of finished products.
230g / 8oz
£421.00 £336.00
Vertex Racebag Down Sleeping Bag
It's lighter and smaller than any sleeping bag you've ever come across.
Jon Doran, OutdoorsMagic Review.


  • 20% off standard pricing
  • Only available until 30 June
  • Whisper-light 18g/m2 Vertex fabric inner and outer
  • Rare 950 fillpower European goose down
  • Fully box-walled top, stitched-through base
  • Mummy hood to fit close around the head
  • Oval footpiece
  • Stuff sac and storage bag supplied
  • Packed size: 13cm x 21cm*
  • Options:
    • Extra long, long and short lengths
    • Slim, wide and extra wide lengths
    • Foot zip, left or right

* Please note: we make our stuff sacs big enough to allow fairly easy stuffing rather than reducing the sleeping bag to the tightest minimum.


Weighing just 230 gm and designed for temperatures of 8°C, this is one of the lightest sleeping bags in the world. With its partial box-wall construction (to help the down filling loft to its maximum potential) it is a serious option for summer racing, ultralight trekking, wild camping or simply shaving off every possible gram.

The whole shell is made from 18g/m2 Vertex fabric, the lightest of all our fabrics, and the fill is PHD's superb 950 European goose down. The top is fully box-walled for warmth, while the base is stitched-through to save weight where the down is compressed under the body.

For the midsummer months we're launching our Vertex Collection: the lightest Down Vest, Jacket, Shorts, and Sleeping Bags in their class. Only available May and June at never to be repeated prices.

Foot zip

For the lightest and smallest pack a sleeping bag without any zips is king, but for those with warm feet, or even race blisters, a foot zip can be more than just a little luxury. Adding only 10-12g to the total weight of the bag, the foot zip is the ultralight route to comfort.

Ultralight Vertex fabric (weight: 18 gsm)

Breathtakingly light at 18 gsm, Vertex is the ultimate in technical fabrics for extreme weight saving. This fabric is down-proof and superbly wind-proof and represents a high-point in the development of lightweight technical fabrics. The result of years of evolution and testing, this whisper-light fabric opens up new possibilities at the pinnacle of lightweight gear design

950 fillpower down

A newcomer to our range. European goose of rare quality. A high value alternative at the top levels of performance. More on our down insulation.


This bag has an insulating straight wall baffle system on top (no straight-through stitching). Straight wall is the lightest of all baffle sytems. In cross section it looks like this:

On the bottom stitch-through seams are used to minimise weight. More on sleeping bag construction.

Review is for an earlier (and heavier!) version of the Racer Down Sleeping Bag

"The Racer Down Sleeping Bag feels ridiculously light. You don't notice it so much when it's loose and unstuffed, but pop it into the handy stuff sac - lightweight coated fabric but with no seal at the top - and it suddenly dawns on you that it's lighter and smaller than any sleeping bag you've ever come across. It has a gossamer-light feel and surprising loft given its minimalist size. It's ridiculously small, it's ridiculously light and while it's not exactly a portable furnace, first impressions are that it's also pretty warm for what it is." Jon Doran, OutdoorsMagic Review

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