I dislike waterproof shoes (WP) for many reasons, and here are some:
- my feet get hot fast and always sweat, thus blister much more in WP shoes
- WP shoes, once wet, stay wet for a lot longer than mesh shoes, which dry faster
- They COST more, and since they have a big hole in the top, never seem to really
work all that well. Water inevitably gets in some how and then they are a bathtub.
- Many more options are MESH, especially the Zero-drop shoes that I enjoy.
FOR YOU - I carry AT MOST a 35 lb pack, and that is a rare occurrence, mostly I carry
less than 25 lbs for any trip of any length. (California Sierra's with 10 days of food was 34 lbs)
Since you will likely be carrying more than that, perhaps you'll need to move into a non-zero drop boot,
but something lightweight and perhaps WP - unless you want to buy Goretex socks like I use in my
mesh shoes when hiking in snow or cold weather. Truly heavy pack hauling may be much more comfortable
in a boot with some structure, and some protection for your arch and foot.
I won't recommend a specific boot since I don't know your foot structure, but there are MANY options in the mid-weight
boot market right now that may work for you. Scarpa has some nice ones, as well as Vasque, Merrell,
Salomon, and even Inov-8 I believe.