Taking orders on our newest project: Express Creek Sled Duffle. check it out:
http://upski.com/products/express-creek-sled-duffle

We'll be making a run of them in March (made in Colorado)

That's an interesting product and looks pretty good.

Not sure about "European expeditions" but it looks like it might be useful for short Patagonian icecap trips, some AK trips and maybe even short Antarctic trips. I'd be interested to see the results in different snow conditions. There are a few Himalayan/Karakoram trips where this could be useful too e.g. Biafo-Hispar Traverse, Chadar Trek etc.

Well done on the innovation and I hope it works well for you.

Looks like it would be more stable and less likely to tip and roll than the standard kiddie sleds available in AK.

Damien, you're right - that was a bit of a typo on my part, in the Alps, the abundance of huts & steepness of the mountains don't really dictate sled pulling. We did however use this bag last season while traveling around Europe and were very happy to have it keep our weight below the airline limits.

Excitable - yes, it is more stable... design & implementation of the metal runners being the biggest factor, the center of gravity is also a little lower which helps.

That looks awesome.