>>1142848I would seriously suggest these. They fill out your specifications except for the leather upper.
Theyre sturdy, comfy, the tread pattern is broad and spaced like a gumboot and they only cost $120 kiwibux at the local farmlands. I wear mine out hunting all the time and thats 10km+ treks through steep temperate rainforest.
Theyre also very quiet boots to wear too.