An "adjustable halter" is a type of strap or rope that goes around an animal's head or neck to control its movements. This halter can be easily changed or modified to fit the animal's size and ensure a comfortable fit. Full definition
Ayliss Women's Sexy Cut out back Bohemian Casual Loose Romper Playsuit Sexy open back design Adjustable halter strap Adjustable Tie waist (divinelifestyle.com)
The featuring includes a lightly padded bra cups, adjustable halter tie with a cinched center, mermaid print followed by a fitted wear. (pinkbasis.com)
Dual spaghetti straps hold a V - neckline and come back in to a string tie adjustable halter neck with a racerback sitting below. (herboutique.com)