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    About us

    Costume Bay is an 100% Australia local business based in Sydney to provide a large range and high quality of costumes, including animal Onesies, adult Onesies, onesies for kids, as well as Oktoberfest costumes, Gatsby dress, Great Gatsby costume, lederhosen, 1920s dress,
    flapper dress, Halloween costumes for both adults and children and much more.  

    Onesie became very popular during the late 2000s and early 2010s as a street fashion, especially in the UK and Australia. Costume Bay, as one of the leading Australia onesie suppliers, committed to supply high quality onesies and great after sales services that meet the customer’s needs. There’s no better place to find all kinds of Onesie & Costumes you need at best price. Costume Bay has the onesies you need at a price you’ll enjoy. 

    Costume Bay Popular Costumes & Onesie Range:

    Costumes for Women:

     Costumes for Men

    Costumes & Onesie for Children

    Oktoberfest costumes

    Frozen Costumes

    At Costume Bay, our goal is to achieve 100% satisfaction from our customers and bring you the best value for money. If you have any queries regarding our products and services, please contact us at