heavy
light, lightweight
high, knee-length, thigh-high, thigh-length
ankle, desert
calf-high, calf-length
muddy
polished
leather, plastic, suede
rain (AmE), rubber (esp. AmE), snow, wading, waterproof, Wellington (BrE)
lace-up
high-heeled
hobnail, hobnailed, thick-soled
steel-capped (BrE), steel-toecapped (BrE), steel-toed (esp. AmE)
work
army, combat
baseball, football, rugby (all BrE) (cleats in AmE)
climbing, cowboy, hiking, riding, ski, walking (BrE)

pair
a pair of heavy walking boots

have on, wear
put on
pull off, remove, take off
lace up, unlace
polish

polish

as tough as old boots (esp. BrE)
The meat was as tough as old boots.

the toe of sb's boot
She kicked at the snow with the toe of her boot.

car

open
close, shut

in the boot
What have you got in the boot?