Duo Down Quilt - Single Size

Two quilts that stud together to give three options for all-year-round versatility.
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.
965g / 34oz
Duo Quilt (single size) showing both quilts combined

If you want a duvet that's light and warm and made from some of the best components out there ... here it is!
OutdoorsMagic Review.



  • Rare 950 fill-power pure European goose down
  • Water-resistant Ultrashell fabric top layer. An excellent balance of weight, water-resistance and breathability
  • Super-light 10X fabric underneath. Down-proof, wind proof and super soft
  • Tie loops down each side
  • Studs along all four sides that align both quilts
  • Joined quilts are offset to remove cold spots
  • Stitch-through construction for lightness
  • Stuff sacs; one for each quilt:
    • Top quilt: 13 x 21 cm
    • Base quilt: 17 x 28 cm
  • Weights: Top quilt: 400gm.  Base quilt: 565gm.  Total weight: 965gm
  • Size: 135cm (width) x 200cm (length)
  • Colour: Burnt Orange


Two quilts that stud together to give three options for All-Year-Round versatility:

  1. The top quilt is the lightest & coolest. Use on its own in the summer months, at lower altitudes, and in warmer temperature zones.
  2. The thicker base quilt is used on its own for the chillier spring and autumn months.
  3. Join the two quilts together for cold winter nights. 

Wonderfully comfortable yet so simple in design and a fabulous alternative to a mummy shaped sleeping bag. The outer (or top) Ultrashell water-resistant fabric is totally wind-resistant and protects the down from condensation drips in lightweight tents and tarps.

The 10-denier 10X fabric on the underside of each quilt is very soft and comfy against the skin and so superlight it allows maximum lofting of the rare 950 down and gives a feeling of virtual weightlessness at night

The Duo Quilt is a versatile camp companion. Use the top quilt in place of a lightweight bag on summer nights or wrap it around you if you're sitting out. In colder weather change to the thicker quilt or clip both quilts together for double thickness, or simply slip between the two. It also works as extra layers to put over your sleeping bag at night. The side loops allow you to fix your own attachments to hold it in place.

Also available in two-person sizes: Double and King Size.

Note: This quilt has been designed to be as warm as possible for minimum weight. As it is open, it is not possible to give it a temperature rating. If combined with a sleeping bag outdoors, or with other bedding at home, it can add significant extra warmth. On the bed at home the quilt's 10X cover slides more easily than normal bedding fabrics. If you are not using a lightweight top sheet or cover, you may want to make use of the tie loops to ensure that the quilt stays in place.

Ultrashell (weight: 40 gsm)

One of the lightest of PHD's coated materials. This ripstop nylon provides complete wind block and good water resistance at minimal weight. Ultrashell gives an excellent upgrade to performance with very little weight penalty.

Ultralight 10X fabric (weight: 26 gsm)

10X, PHD's first 10 Denier Fabric. 9,000 metres of the yarn used to weave 10X weighs just 10g, that's about the same as a £1 coin! For all its thinness 10X is amazingly downproof and with reasonable care will go on giving you good service for years.

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.

Testimonial refers to our double Ultra Quilt

"About 12 years ago, with a stroke of luck that escapes most climbers, I found myself married to a girl whose heart was in the mountains like mine. But the marital bed was not all roses, the marital bed was sleeping bags. Not good. But simply solved. You guys at PHD came to the rescue when we ordered a pair of 2m x 2m duvets made using the very latest technology, the lightest sleeping bag fabric filled with your very best quality goose down. Within two years we had spent close to 90 days in our tent, climbing in Ethiopia, surfing in Cornwall etc We have slept in the open, under one and on the other and despite our warmth, shaken the ice from the top duvet as we awoke. Although we are extremely well-equipped for the outdoors, of all the gear, it is these two duvets that have been coveted the most. Thank you for the quality you have added to our outdoor adventures."

David and Katie (Iota Climbing).

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