Minim 300 Down Sleeping Bag (sale)

Minimalist design cuts weight, but not warmth. Water-resistant Ultrashell outer. Lightweight for zero degrees. £133 off.
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.
0°C / 32°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.
555g / 20oz
Minim 300 Down Sleeping Bag (sale)

Really pleased with the minim bag. It's been my go-to bag in the UK in all conditions, and coupled with a down jacket can go down to sub-zero temperatures easily.



  • £133 off
  • Exceptional 900 fillpower European Goose Down
  • Water-resistant Ultrashell outer
  • Lightweight M1 inner fabric
  • Box-wall construction for max loft
  • Open hood and stretch draw-cord
  • Footpiece: Ovoid shape to fit naturally to feet & avoid pressure; multibox section covers whole foot area
  • Straight-wall baffles for lightness
  • Packed size*: 13 cm x 21cm
  • Stuff-sac & mesh storage bag supplied
  • Set options:
    • Long or Short zip
    • Slim and Wide widths†
    • Short and Long lengths†

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

†Please note: For all length and width options we change the amount of downfill to keep the warmth (TOT) the same.

Please note: Although the video shows this bag in burnt orange, in this sale it is offered in purple coloured fabric.


Beautifully light and efficient, the Minim range of sleeping bags are selected by light-weight backpackers, lightweight mountaineers, and marathon racers with a keen eye on weight and pack size.

This special Minim 300 is available in our Ultrashell water-resistant fabric to combat condensation, and makes a great choice for anyone looking to extend their camping to temperatures down to 0C.

This is not a bag we make as standard--you can only buy it via our 'Design Your Own Sleeping Bag' website, where it would cost you £489. That's £133 off.

Technical specifications are as our Minimus bag: no zip, no side-block baffles, no compromise. The continuous box wall baffles allow down to be moved from the base to the top giving greater control over warmth and comfort.

Made to order and by hand, this bag comes with Short, Standard and Long Length options, as well as Slim, Standard and Wide Width option, so you get the perfect fit and the best possible warmth to weight ratio. And, as we are making these sleeping bags to order, you can select either Short or Full-length side-zips on the left or right sides.

Dispatch time: As with all PHD products, these are made to order and by hand. We estimate it will take us around 4 to 6 weeks to make and dispatch sale orders. During busy periods it may take a little longer.



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.

Lightweight M1 fabric (weight: 39 gsm)

Lightweight silky microfibre. This close-weave 20 denier fabric is fully downproof, but also light and flexible enough to allow the down full loft. A reliable performer that has been the basis for much of our lightweight gear for some time.

Sleeping bag zips

  • No zip: The standard design on our lightest bags with open hoods. The simplest/lightest system which is a must for adventure racers. Up to 140gm (5oz) lighter than a full zip with draft tube.
  • Full zips: Full zip bags ventilate well, so they can be used over a wider range of temperatures.
  • Short zips: Short zips are lighter and pack smaller than full zips. A short zip & draft tube is up to 85gm (3oz) lighter than the full version.
  • Our full briefing on sleeping bag zips.

900 Fillpower Down

European goose down of very high quality. A truly excellent down with large clusters, consistent quality and lively long-term performance. More on our down insulation.


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

More on sleeping bag construction.

"Excellent sleeping bag, used summer camping in the Alps and in Britain. I tend to sleep cold so this level of warmth was perfect for me for cooler summers, and nice and lightweight to carry, enabling me to easily carry all my backpacking gear in a 35-45litre sack."

"I was really pleased with the minim 350 bag. Got a great discount in the PHD sale and have never looked back. It's been my go-to bag in the UK in all conditions, and coupled with a down jacket can go down to sub-zero temperatures easily. Also easily coped with a summer trip up in the Andes a couple of years back. I can't fault it really, does exactly what it's meant to at a very low weight. I'd definitely buy another when the time comes for new bag."

"Excellent, performs very well and better than previous down bags that we've had from other suppliers such as Mammut and Mountain Equipment."
Mark Wilson & Hilary Lade

"The bag has been used for UK backpacking trips, the TGOC and the Cambrian Way. To date the bag has lived up to its reputation it lofts well and retains it down fill and is superb for UK use, would even consider using on Alpine trips during summer months."

"The bag is ideal for backpacking given its low weight and bulk. It is also more than warm enough and very comfortable in use. The main benefit of buying the bag in the sale was it allowed us to get a high quality bag, at reasonable cost, tailored to the needs of our 17 year old son who is 6' 8."

"I have used the bag quite extensively in a variety of conditions since I bought it: Alpine summer bivvy/camping (with a bivvy bag), the OMM mountain marathon, the Spine Race (with a bivvy bag), and Scottish winter camping (with a 3 season synthetic bag over it). For me, the bag is the right balance between warmth and weight as it's light enough to carry for long multi day things, and warm enough to ensure a decent night's sleep which is important for recovery the next day."

"The sleeping bag has been excellent. I have used it for long distance walking and backpacking so it gets scrunched up and packed tight on a daily basis. Dampness hasn't bothered it too much, and it's still going. It has lived up to expectations, so very happy with it."
Fiona S

"Great bag. I used it at the Fire and Ice race last year. With temperatures around zero and with high humidity I remained warm while many others didn’t. I would highly recommend it for any other similar ventures! ."
Mark Gilbert, Canada

"I've found it the perfect general purpose sleeping bag. It's not too hot for sleeping on someone's sofa, it packs pretty tiny, and it’s good for 99.9% of southern UK sea-level-ish nights in a tent with clothes on and a decent sleeping pad. So there we go!"

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