I discovered Magnum boots a few years ago and love them.
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I too like the Magnum boots
One thing I will say about "Light weight" boots - MOST can't be re-soled. I was quite happy to get a year out of a pair of Magnums
I'll be so happy when I can wear them again. Right now my leg wound prevents wearing anything over ankle high
Another option that I found - Comfortable, you can get them from lightweight to heavy uppers, and design them so that they have whatever soles you like:
http://www.russellmoccasin.com/I had a pair made - lightweight 6" leather uppers (you could go canvas if you want) put with a tripple sole, and the heaviest Vibram soles (The Montagna Sole) - so far, I've worn out 4 pairs of soles, and the uppers are fine! With my weight loss, the boots are now a tad too wide, but I wear them when my foot is wrapped in a bandage. Look at the "PH" line for a cool, lightweight, but tough boot
Only problem - Oh my, do they cost, but they custom fit them to your feet, and if they don't fit right, send them back - they will make them right
(standard disclaimer - no relationship except happy customer)