Union Bay is an American casual clothing brand. The label was established in 1981 and specializes in youth apparel. Find preowned Union Bay clothing on Depop. Search for secondhand adults and kids’ styles. Explore used denim overalls, slouchy knits and closet basics. Look out for popular vintage cargo styles and button downs. Discover the label's collection of sunglasses including cat eye, aviator and retro designs. Search for footwear for every day dressing, summer looks and more online now.