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Home / Swim / Leakproof Deep V One Piece Swimsuit

Leakproof Deep V One Piece Swimsuit

$118.00 USD

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Absorbs about 1 regular tampon

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Medium coverage

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Deep V-neck design

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Premium UPF 50+ fabric

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Machine washable

Jay is a 30F, has 36

Jay is a 30F, has 36" hips and wears a Knix size XS+

| Black
| General
Jay is a 30F, has 36

Jay is a 30F, has 36" hips and wears a Knix size XS+

Jay is a 30F, has 36

Jay is a 30F, has 36" hips and wears a Knix size XS+

Jay is a 30F, has 36

Jay is a 30F, has 36" hips and wears a Knix size XS+

Jay is a 30F, has 36" hips and wears a Knix size XS+

Absorbency: Light

Light
Drop
Drop
Drop
Drop
Drop
about 1-3 regular tampons
Essential
Drop
Drop
Drop
Drop
Drop
No Absorbency

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

Free Shipping on orders $100+

Shipping

Shipping

Processing Timelines

Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.


Split Shipments

Most orders will ship from a single warehouse. However, we occasionally ship from a combination of warehouse locations, so you may receive your order in multiple parts. If items from your order ship in separate packages, we’ll send you tracking information for each package when it becomes available.

Delivery Timelines

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines do not include processing times. See above for details. All transit times are measured in business days which are Monday-Friday, excluding holidays.

Please note, all shipping timelines are estimates and are not guaranteed.

We are not able to ship to US territories (including Puerto Rico, U.S. Virgin Islands, Guam, Northern Mariana Islands and American Samoa) at this time.
Easy Returns within 30 Days

Returns

Returns

Sale & Last Call

Items discounted 30% and below are eligible for size exchange or store credit. Items discounted above 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.

Free Returns

Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.

Return Policy

Return policy varies by product, please check if your item is refund or exchange eligible by viewing our full policy here.
Rewards Members Earn 118 Points

"It feels ultra-soft against the skin while gently hugging you in all the right places."

- Fashion Magazine

Swim in Style

A fit we've spent years perfecting, with our deepest V neckline for regular and plus cups.

Sun-Smart Protection

UPF 50+ fabric protects your skin while you soak up the sun.

Feels Made For You

Adjustable straps make it adaptable for different torso lengths. It features removable cups and medium bum coverage.

Zoom

Jay is a 30F, has 36
| Black
| General
Jay is a 30F, has 36
Jay is a 30F, has 36
Jay is a 30F, has 36

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • tsp
    about 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 2-3 menstrual cups
LEAKPROOF SWIM WORKS IN LAYERS

Built-in protection that feels like nothing at all.

Just like regular swimwear—but better! Non-swelling liner and patented no-show design.

Soft Top Layer

Top Layer

Smooth and comfortable liner in swimsuit fabric.

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4.2
Rated 4.2 out of 5 stars
Based on 49 reviews
Total 5 star reviews: 33 Total 4 star reviews: 7 Total 3 star reviews: 2 Total 2 star reviews: 1 Total 1 star reviews: 6
82%would recommend this product
ComfortRated 4.1 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
SupportRated 3.8 on a scale of 1 to 5
EffectivenessRated 3.6 on a scale of 1 to 5
Ease of UseRated 4.0 on a scale of 1 to 5
Write a Review (Opens in a new window)
49 reviews
  • Rated 5 out of 5 stars
    6 days ago
    Great buy on sale!

    It fits fine even though I opted for the XL+ since the XL was sold out. Beautiful material.

    Therese L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Flattering bathing suit for petit bust.

    I purchase Sea Lily in size S+. For reference, I am 5'1 and 110lbs with an athletic build. This size fits my body well and I have a petit bust (very flattering). I am recommend this one piece suit!

    Andrea
    Verified Reviewer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 months ago
    A winner!

    Such a cute design and fit is true to size. Purchased for an upcoming vacation and it did not disappoint. It will be coming with me!

    Dianna A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    9 months ago
    This is beautiful!

    Gorgeous fit! I am typical E-F cup and this just fit perfectly! Such great quality!

    Sarah H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    9 months ago
    5 Stars

    Cute and great coverage!

    Isabella
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    9 months ago
    Perfect one piece

    This is a great one piece swimsuit that's flattering while offering protection. I liked it so much I got a second one in a different pattern!

    Christine Y.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    12 months ago
    Bathing suit

    Fits well. Material is strong.

    Allison M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Great return/exchange policy

    I needed to switch sizes in everything i ordered and the process was very smooth and easy! I love that!

    Meghan R.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    5 Stars

    This is my favourite - the fabric is great, kind of sucks you in (thank you!) - I feel very confident in it!

    Jennifer
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    fits great

    I followed the size chart and read the description carefully and I was sent the perfect product. Knix has their own sizing measurements and if you want the correct size product you will measure yourself and order accordingly. I am very happy.

    Karim G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Looks amazing on!

    Love this bathing suit! It’s sexy but secure.

    Jinny W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    5 Stars

    Excellent bathing suit and I felt secure in it

    Eva
    Verified Buyer
    Was this helpful?