Authentic 1920s ?Sea Lion? men?s bathing suit, navy blue wool with open side construction. Features tank-style straps with button closure at one shoulder and built-in trunks. Classic Art Deco-era men?s swimwear design, increasingly scarce in intact condition. Condition: Very good to excellent antique condition. Wool is strong with no stains or holes. Trunks are in especially good shape. One button at strap intact. Overall, well-preserved for a century-old garment. Provenance Note: The Sea Lion brand was among several makers of men?s wool bathing costumes in the 1910s?20s, when swimsuits transitioned from modesty-focused tunics to streamlined athletic cuts. The open-side design and buttoned strap reflect period innovations for comfort and mobility in swimming. Wool swimsuits of this era are prized today as historical garments and examples of early leisurewear. Style Aesthetics: 1920s Art Deco swimwear ? Sea Lion label collectible ? Antique wool swimsuit ? Open-side design ? Sustainable antique ? Styling / Use Notes: Not intended for wear ? best for collection or display. Excellent for museum or archival costume study. Works as a prop or reference for 1920s-set film, stage, or photography. Collectible for early 20th-century swimwear enthusiasts. Measurements (approx., flat): Chest: 21?25" Hips: 21?27" Length (shoulder to hem): 33" Approx. Modern Size: Men?s M (reference only; not wearable) Fabric: 100% wool · Navy blue · Open sides · Tank straps with button closure · Built-in trunks · Sea Lion label Sustainably vintage ? 1920s Sea Lion wool bathing suit, not fast fashion. Costuming a film, theater, or creative project? Contact Miss Kitty ? we have extensive vintage inventory not yet listed and can offer excellent bulk/volume discounts for productions. Thanks for Shopping at The Cats Pajamas! PLEASE ASK Miss Kitty any QUESTIONS BEFORE PURCHASING! Seriously, fire away! We love to chat and want to make sure you're doing a happy dance when your goodies arrive! RETURN POLICY: Our treasures are sold as final sale (no take-backsies!), but your satisfaction is our jam! We get it ? photos can only tell half the story, so don't be shy about those questions! CONDITION: All our finds are sold as-is, straight from a clean, smoke-free zone. Unless we've called out a specific "quirk," these beauties are flawless and ready to shine! SHIPPING: We're on it! Standard 2-day handling, or if you're in a hurry, zip, zap, zoom with 1-day express via UPS or FedEx! INTERNATIONAL SHIPPING: Hey globetrotters! Just a friendly heads-up: you're on the hook for any import taxes or customs fees. We play by the rules and give customs the full scoop, so no surprises there!