Vintage 1970s Blue Halter One-Piece Swimsuit Size 9/10 Retro Backless Swim Suit

Vintage 1970s Blue Halter One-Piece Swimsuit Size 9/10 Retro Backless Bathing Suit Step into retro summer style with this authentic vintage 1970s halter one-piece swimsuit. A striking shade of bright blue, this bathing suit features: Deep plunge neckline with tie detail at the bust Open back halter design that ties at the neck Stretchy form-fitting fabric for a classic silhouette Size 9/10 (vintage sizing – see exact measurements below) Original vintage care tag: "Rinse in cold water, do not bleach, wring or iron. Dry flat." Measurements (unstretched, adjustable ties allow some flexibility): Pit to pit: 13" adjustable Length: 27" adjustable Waist: approx. 26–28" (measured flat, with stretch) Condition: Good vintage condition with expected age-appropriate wear. A rare collectible swim piece for retro lovers, pinup fashion, or summer festivals. Note: Some images are Ai Generated vintage swimsuit; 70s swimwear; retro bathing suit; halter one piece; backless swimsuit; pinup swimwear; 70s halter suit; blue vintage suit; retro one piece; festival swimwear; disco pool party; vintage size 9 10; retro halter suit; 70s pinup style; vintage chic swim; retro beachwear; mod 70s swim; vintage festival look; poolside retro vibe; rare vintage swimsuit