Hey.
Have you looked at 5.11 recon urban boots? They are very lightweight, and look sturdy enough. Though I'd have to ask how they would stand up to abuse in the field, over a period of a year or so? I did order a pair myself from polimil, but they could not get stock in time for me when needed. Reviews are mixed, and these are the ones I had my head set on for a time. Also has a place for a boot knife. Made of ripstop nylon, Helcor leather and suede.
https://www.polimil.co.uk/footwear/...=f2e5334f4efd3417c05ee4253a86339f&fo_s=gplauk
Forgot to add that I have a pair of the austrian army lightweight para boots (as mentioned above) I love them, and wear them for work regularly. They are not that lightweight though, single layer leather, very sturdy and supportive. But they are much lighter than the german army para boots, of which I also wear at work, switching between the two. Both pairs can be gotten here in the UK for less than £40 part used. Both pairs still had, and have a lot of sole wear to give. I'm going to re sole the austrian ones very soon with vibram, as it happens.
For play I wear rogue's, which have a heavy sole, and marvelous quality leather uppers. But my favourites are my Lundhags, ranger mid's and parks. Both pairs are lightweight, and very sturdy. Never had a leak in either, and they have been used a lot. All day comfort in the hills with ease. Oh, spoil your feet with some good quality 100% merino socks too. Mund do some cheap excellent value one's.
If I was going to say which boots I am intimate with, that suits your criteria, then its the parks. Ligher than the rangers.
They take a little wearing in of course. But worth the effort. Never let me down. Question is, are they still made? Check out lundhags webpages. Hope this helps, and if you need more details, just ask.