>>2649355>EVAIf you want lightweight, EVA is really hard to beat. It's the same material used in Crocs, so you can find ones that are lighter than a pound per boot. EVA is heat retardant (I think this is the correct term) so if it is cold outside will not radiate as well to the material, and therefore to your foot. Wool and cork are other materials that are heat retardant for example. EVA is also supper cheap as it is the foam used in the midsoles of running shoes. Problems with EVA is exposure to sun like leaving them out on your deck will shrink the material and it is not the most durable material either. There's a Polish company that makes some named Lemigo. Tingley makes some cheapo ones. There's also some Russian brands: Torvi and Nordman. I would steer toward ones with a liner. EVA does not breathe and the liner will do a good job at picking up sweat, fit, and providing more insulation. With these you can always trade out liners like the mukluks and/or wipe down the water from the inside to dry it out without having to wait like you would with leather. I don't know any Tingley that uses liners, so you would have to upsize and customize which would be a nightmare.
Lemigo has some with liners, and is more accessible to the West.
Nordman and Torvi are a bit harder to find, but have inserts on the bottom of some of the models that give the outsole a bit more abrasion resistant. I tried one of the brands though. Think it was Torvi, and the width was too narrow for my taste. Suffice to say I use them fishing and stand in the water, and they are great.
I have been told these sell for like $40 bucks in Russia, and are often what people buy there for winter.
This is probably my favorite option, but I wouldn't use if i'm climbing shale or a mountain or anything like that.
Pros:
Cheap
Material heat retardant
Lightest weight
Cons:
Will shrink to sun
Not the Most durable
Not the best traction (Look at Torvi/Nordman for more traction)