bootcuts
I bought a pair of pinstripe bootlegs.
My favorite type of pants are bootlegs.
These trousers fit tightly across the hips and bottom and then flare out into bootlegs or even bellbottoms.

SMART Vocabulary: related words and phrases

Trousers
bell-bottomed
bell-bottoms
Bermuda shorts
blue jeans
bootcuts
daisy dukes
denim
drainpipe
dress pants
dungarees
knickerbockers
knickers
lederhosen
leggings
Levi's
stirrup pants
stride
tracksuit bottoms
trews
trousers