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The double suit is a quick-change suit for reacting to variations in temperature, and we’ve been hearing tales of its appearances on the world’s highest mountains.
A new documentary has been released about the explorer, author, and user of PHD expedition gear, Sir Ranulph Fiennes.
I've just returned from Vinson in Antarctica where your Hispar 1000 sleeping bag, down jacket, mitts and boots made life a breeze. Lord Forsyth, former Secretary of State for Scotland.
The measurements in the Sleeping Bag Chart below are personal body measurements.
†Please note: We make our stuff sacs big enough to allow fairly easy stuffing rather than reducing the bags to the tightest minimum.
‡Please note: The optional waterproof Dri-LX outer provides an extra seam-sealed outer shell to the bag. While a shelled sleeping bag is not designed to be used alone in heavy rain (the hood area is open to the elements) the shell does protect the bag when it is used outdoors without a tent.
*Please note: For all length or width options, we change the amount of downfill to keep the warmth (TOT) the same.
This K Series product has been created for one single reason, to take warmth-for-weight performance to the limit of what's possible. Unique 1000 down, super-light materials, and specific design features mean that the word Ultralight now applies to this wide range of gear that will take you to the Poles as well as on a Sahara Marathon. More on the K Series...
Ultralights for the mountains is what we have always called Hispar sleeping bags and even with the new K Series versions it's hard to find a better way to describe them. Perhaps 'Ultralightest' would be closer if it wasn't such an awful word.
The combination of this bag's design with the superlative quality of our 1000 down and our new fabrics, Ultrashell and 10X, almost send the Hispar K range off the scale for warmth/weight performance.
The weights of the Hispar K bags are graphic evidence of the effectiveness of this specific design. With the added performance of our 1000 down these bags deliver the greatest possible warmth per gram.
The optional waterproof Dri-LX outer provides an extra seam-sealed outer shell to the bag. While a shelled sleeping bag is not designed to be used alone in heavy rain (the hood area is open to the elements) the shell does protect the bag when it is used outdoors without a tent, for example in a snow-hole or under a tarp.
At just 64gsm, Dri-LX is our lightest 2-layer breathable waterproof rip-stop nylon fabric. Its remarkably low weight not only makes for a lighter load, but also reduces pack size. Its excellent waterproofing qualities are in part due to how it can be taped at the seams to create a waterproof shell for sleeping bags and clothing.
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.
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.
This rarest of all downs we reserve for the K Series. European goose down of unique quality. 1000 provides the highest warmth-for-weight performance possible from down. More on our down insulation.
Proofed fabric (Drishell or Ultrashell) panels are included inside the hood and foot areas of the bag to help keep the down dry. In very cold temperatures your breath can cause ice to form around the face opening, which may soak into the down as it melts. The panels at the foot end are to protect the down if you get into your bag with wet socks (or in extreme situations with your boots on).
"The sleeping bag is absolutely incredible ... you have to see the size this down puffs up to." — Scott Sears youngest person ever to reach the South Pole alone, unsupported and unassisted.
"Thank you for the Hispar 1000 K bag you sorted for me for the Rovaniemi 300 last month. It was great to have such an effective and lightweight bag to rely on." — George Winkley.
"I've just returned from Vinson in Antarctica where your Hispar 1000 sleeping bag, down jacket, mitts and boots made life a breeze." — Lord Forsyth, former Secretary of State for Scotland.
"Just a quick note to thank you for the timely supply of the PHD down gear before my Mt Vinson trip. The gear was absolutely first class. I used the Hispar 1000 down sleeping bag which, if anything, was too warm!" — Mark Dixon.
"It's absolutely fantastic ... I'm over the moon." — Simon Horridge
"I have one of your Hispar Bags and think they are amazing." — Richard Bishop
From desert races to mountain marathons: our kit picks
Tell us where you're heading, we'll tell you what to take
Choose from a huge range of size, fabric & zip options…or take it a step further with our Design Your Own service
Your clothing needs to fit you. Choose any PHD garment, dial in your sizing, and we’ll do the rest.