WordNet
n. a boot without laces that is worn for riding horses; part of a riding habit
Wikipedia
A riding boot is a boot made to be used for horse riding. The classic boot comes high enough up the leg to prevent the leathers of the saddle from pinching the leg of the rider, has a sturdy toe to protect the rider's foot when on the ground and has a distinct heel to prevent the foot from sliding through the stirrup. The sole is smooth or lightly textured to avoid being caught on the tread of the stirrup in the event of a fall.
The modern riding boot is relatively low- heeled, with a heel of less than one inch, though historically a higher heel was common, as it has always been critically important for riding boots to prevent the foot from slipping through the stirrup. Today, only some styles of cowboy boot retain a higher heel than other modern riding boots.
Usage examples of "riding boot".
Madame Scull poked him, not gently, with the toe of her riding boot.
The steel-reinforced toe of Raj's riding boot thudded into his chest with an impact that brought a twinge of pain to Raj's lower back.
The wrangler took off his battered Stetson and threw it down and stamped his riding boot on it, then glared murder at the horse.
Dressing later before he set out for the show, Jake transferred the crushed and faded yellow tansy flower from the bottom of his left gum-boot to his left riding boot.
Suzette raised a brow, as she stamped a foot into a tooled-leather riding boot with high heels.
Doreen said, turning out a leg with a riding boot on it to admire the curve.
The heel of her heavy riding boot smashed into the person she'd sensed charging up behind her.
A long-knife, just a scant thumblength from qualifying as a sword, a belt-knife for less lethal use, a set of throwing-knives and arm-sheaths to hold them, and a tiny boot-knife that slipped invisibly into the side of a riding boot.