I like those old leather boots. Wore my friend one before last
year when I went for NCC course. But his boots too small (247, I
wear 255), cause me to have blisters during all 4 days. Step into a
hole (not very big as in my feet cannot fit in) still will not
sprained my ankle. NCC gave me jungle boots (green colour cloth
type ones), step sideways, landing not properly and given that I
had sprained my ankle before, stepping into a hole means I sprained
my ankle again if it is not firmly supported.
Goretex kind, if you look inside, there is still the 270, 277 size
written but very small and not very clear. And the ankle not really
supported, like very soft same as jungle boots cannot hold properly
one.