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BOTTOM - Lady Bird Bikini Onyx - Olivia + Ocean
BOTTOM - Lady Bird Bikini Onyx - Olivia + Ocean
BOTTOM - Lady Bird Bikini Onyx - Olivia + Ocean

BOTTOM - Lady Bird Bikini Onyx

Sale price $ 64.00 Regular price $ 25.00


Olivia + Ocean's newest swimsuit style designed with Moms in mind. These are the bikini bottoms of your dreams! Made from the best Italian fabric that holds you in while feeling buttery soft on your skin and a seamless finish (no cutting into you or unwanted bulging anywhere!). Pair with our Lady Bird Bikini Top here.    

  • High-wasted cut, just above belly button 
  • Seamless finish design 
  • Smoothing Italian fabric 
  • Full coverage bottom for privacy 
  • Mom friendly, these will fit comfortably through all seasons of motherhood
  • Designed and ethically manufactured by hand in Los Angeles, California
  • Make a difference with your purchase, learn more about our charity partnership with here

Model, Jessica, is wearing a size S. Jessica has two young children, a boy and a girl. 

See full Fit Guide below. 

  • Return Policy [Final Sale]
    All sales on Olivia + Ocean are final sale and not eligible for returns or exchanges. Returns will only be accepted on items having an error (i.e. you received an incorrect or defective item, etc.). If you believe that your item is eligible for return, please contact
  • Shipping Expectations

    Orders are typically processed within 7 to 10 business days from the date an order is placed. Once processed and delivered to USPS, shipping speeds may vary widely due to COVID-19. USPS’ Austin distribution center is not currently processing shipments at full capacity. Due to this, shipments could be delayed several weeks beyond the standard processing period.

  • Fit Guide

    Women - One Piece

    S 2, 4
    A, B, C
    M 6, 8 A, B, C, D
    L 8, 10
    A, B, C, D, DD
    XL 10, 12, 14
    A, B, C, D, DD
    XXL 16,18
    A, B, C, D, DD, E

    Women - Bikini Top

    S 32
    A, B, C
    M 34 - 36 A, B, C
    L 36 - 38
    A, B, C, D
    XL 36 - 40
    C, D, DD
    XXL 42 - 44
    DD, E

    Women - Bikini Bottom

     Size DRESS SIZE
    S 0 - 4
    M 6 - 8
    L 10 - 12
    XL 14 - 16
    XXL 18 - 20

    Little Girls

    Size Waist  Legs 
    6mo/12mo 13.5 13
    18mo/2T 14.5 14
    3T/4T 15.5 15
    5T/6T 16.5 16
    7T/8T 16.5 16
  • Charity

    Olivia + Ocean is proud to have partnered with in an effort to use our business to make a positive impact. Every time you purchase an Olivia + Ocean swimsuit, our team makes a monetary donation to on your behalf. is an international nonprofit organization that has positively transformed millions of lives around the world. Together with our customers, we support their mission to provide safe water and sanitation to those in need, give women hope, children health and communities a future.