I am trying to figure out how to size Sportiva Spatnik. I cant find anywhere to try them on, and quite frankly I dont want to spend 650 bucks just to ship back. I have been told that they fit similar to the Nepal Evo. The Trangos Evo GTX I wear in 45.5. Any similarities with those?

Generally I size my boots a half size up for big thick wool socks and swelling of the feet.

Thanks.

I have Trango Evos and Nepal Evos and they're both the same size and fit the same. It *might* be a safe bet that the Spantiks will follow in that. They might not though.

That said, I'd be careful on sizing up. If you size up too much then you just end up cranking your laces down too much to compensate for the sloppy fit inside the boot. Make sure your toes don't bang, but I wouldn't worry too much about super thick socks for warmth. The Spantiks are plenty warm on their own. Just my .02

How about buying from a site that accepts returns? I'm about the same size in Trango Extreme's & Spantiks

I have the trango evos and the spantiks in the same size. If you can wear thick socks comfortably in the trangos, the same size of spantiks will work just fine.

I could get from backcountry or something like that but I rather get it right the first time. Do they heat mold the foot or anything like that?

I own both the Nepal and the Spantik and wear the exact same size. My Spantiks also came with two pairs of insoles, one flat reflective material and one standard contoured, which could be used to adjust internal volume.

Hello there,

Bootfitter here. I fit people in these things all the time. We also do all the molding, fitting, etc. on them too.

i have found a 1/2 size above what you measure with the type of sock on that you would usually wear does the trick for cold, low altitude mountaineering. (anywhere in the lower 48). Size up a whole size for 8000 M peaks, and do yourself a favor and put an intuition in it for high altitude mountaineering.

On another note, we have found that molding these liners is not the best for a snug fit in the heel. Rather we press out the toe, which by doing so keeps the heel tight, and the toes roomy.

Good luck!