I do a lot of ecological fieldwork in a remote region, and I'm looking for a new pair of all-terrain, all-season boots. I've been searching all over online, and there are a glut of options, so I thought I'd put it to this forum to see if my specific needs point to one or two companies/models in particular. (Also crossposted to another board frequented by members with similar interests, in case you have a sense of deja vu) Working in forests with frequent changes in elevation and mixed terrain that ranges from ice to rock to dirt to marsh to grasses to fallen trees. Usually at least 5 hours spent in the forest on these boots, up to 12 hours in a day for several days in a row. The area is crisscrossed with rivers and streams that need crossing and marshes that need entering and often knee-deep snow in the winter; a waterproof boot at least 8" high (ideally 10" or more) is necessary. The temperature usually ranges from about 0 F in the winter to 70 F in the summer, though lows can hit -20F. That being said, these boots only need to be comfortable while under active use with a pair or two of woolen hiking socks, since I have a pair of heavily insulated Baffin boots for intensely cold temperatures while relatively sedentary, like on a snowmobile. I'd really like soles that can handle wet ice when crossing frozen rivers and streams, and wet rocks when crossing those same rivers and streams in the warmer months. A bonus would be removable liners so that wet liners can be switched out. Budget-Less than 500 USD, and ideally less than 350 USD, though I understand that premium prices usually accompany products that last years. The brands that come up a lot when I search are Irish Setter, Kenetrek, Danner, and Lowa. I used a pair of Danner Kinetic 8" boots for my first couple of seasons and they were great for just about everything through the first several months; however, they are deteriorating far faster than I would like and the Gore Tex liner has started leaking. Since the Danner recrafting service would cost more than a new pair, I thought I should explore other options on the market.