I know there have been threads where people have mentioned the Tundra company, but I can't say that I have read about anyone actually owning one of their products. I have transitioned through a few Western Mountaineering bags and a Marmot Hydrogen. I have read about and seen footage of down procurement practices from the major suppliers in Hungary and Allied Feather & Down in California, and while I wasn't happy about using down in the past, upon learning more I decided it was out of the question. I was left researching for the lightest, most efficient synthetic sleeping bag in the 30-35 degree range. Of course, there is no comparison between a lightweight down bag and a lightweight synthetic bag in terms of weight….there are just apples and oranges.
This led me to research more and I came to find out about a handful of companies that procure their down from Eider geese in a non-invasive humane manner. As I understand the bags that Tundra makes do not use Eider down, but rather hand collected down from another species of goose in Poland. As per Tundra's web site:
"So we set out to source our down in a gentler way and discovered a special down in Poland. This is collected from the nests of birds that are kept for breeding and live on rivers, lakes and open farm land, moulting naturally four times a year. This naturally moulted down is then hand collected from the nests without disturbing the birds who are allowed to live to a ripe old age, doing what birds do naturally in the wild.
This last detail is very important for two reasons
The natural rights of the birds are not challenged in the collection of the down.
You get a higher fill power and a better quality down from mature birds, which need to be three to four years old to produce fully developed, high quality down clusters."
I purchased the bag from outdoorgb.com and with shipping here to the US the price was right in line with a comparably rated Western Mountaineering bag…actually less.
It came fully compressed in it's stuff sack and upon taking it out I was very disappointed. While I didn't expect the down to fluff up immediately, it was the flattest, least lofting bag I had ever seen upon removal from the stuff sack. Fifteen minutes later it still looked like a pancake…barely 1" high. I have since had the bag out, fluffed out, and slept in and it has finally lofted fully to approximately 3-3.25inches. It is my belief that Tundra ships their bags from the manufacturing facility in a stuffed condition (as opposed to, for example, WM bags that I have always seen as in their larger storage bags). While it took a while to fully loft initially, now it rebounds normally upon removing it from a stuffed sack condition for eight to ten hours (representative of hiking time).
"The bags dimensions and some particulars are as follows, quoted from an e-mail to me from a Tundra rep:
The should width is 82cm tapering down to 60cm for the foot
The total weight is 620 grams with the fill weight 260 g and the shell weighing 360
As it is such a light fill there is no side baffle so you can always shake the down on the top if it gets a little cold
As US retailers are not very interested in Ethical Products You can buy from http://www.outdoorgb.com"
So, as you can see its a pretty wide bag at 64" at the shoulders and a quoted 46" for the footbox. The measures weight of my bag is right on at 22oz. Claimed weight of down fill is 260g or 9.1oz.
Due to the rather large dimensions the loft is not as impressive as on a WM Summerlite for example. Having owned one I can attest to the true "puffed up" and semi firm nature due to the down being in close quarters. The down is claimed to be 860 fill power (yes…860, not 850).
All in all I'm very happy with the bag so far. I have slept in it indoors, albeit with all the windows in the room open to drop the temp to the upper 40's, where of course I am confortable. The bag is rated for 32 degrees as a lower limit and around 43 degrees as comfortable. I plan to push it into the 30's with supplemental clothing.
Above all I am extremely happy with the fact that birds were not harmed to product this product, but I still enjoy the benefits of down insulation. I hope anyone in the market for a mid to low 30 degree rated bags will use this overview as some basis on which to feel more comfortable pulling the trigger on this brand.
Below are images of the bag and captions detailing particulars of the shot.

Hang loops, "double stuffed footbox". Black material is water"proof" fabric

Distance of zipper to end of bag. Nice detail – that triangle is stuffed very well with down to prevent cold air seepage.

I tried to get an average height area. There were of course peaks and valleys. This is with all down shifted in baffles to top layer.

This gives you an idea of the "double stuffed" footbox. Very similar to many WM bags.

Single drawcord for hood closure. Hood is more separate from bag body and contoured than some.

Bag open. You can see all the down has been shifted off of the bottom.


I found the draft tube to be stuffed very well and of excellent size/coverage.

Cotton storage sack is rather small. Stuff sack has unique bag in bag design. I'm assuming to let you choose how much you want to compress the bag / how much room you require in your backpack.

