$109.95 $219.95
Colour: BLACK

You asked, we listened! By popular demand, we have designed a crop-style one piece. Ruby is based on the fit of our Nina Crop, with the addition of the v-wire detail. 

Without compromising on coverage, Ruby is fun, sexy and very supportive. We’ve added the ever-popular ruching detail and high-cut leg to ensure your curves are accentuated in the right places!

Watch the Ruby One Piece fit video here sizing and style advice.


    • Underwired for support
    • Fully adjustable straps
    • 15mm strap width: sizes 8DD - 12F, 14DD - 14E, 16DD - 16E 
    • 20mm strap width: sizes 12G - 12H, 14F - H, 16F - 16H
    • Tie-back
    • High-cut leg
    • Medium coverage bottom
    • Fully lined (power mesh)
    • No padding


If you are the same size on the bottom half as you are on the top half (i.e. 14DD top, 14 bottom) then simply order your bra size. If you are larger on the bottom half than you are on the top (i.e. 8G top, 10 bottom) then please complete our e-fitting form to ensure you select the right size. Watch our fit videos for additional size and style advice.


Fabric Outer - 78% Recycled Nylon & 22% Xtra Life Lycra ®
Fabric Inner - 75% Nylon & 25% Spandex

Cold hand wash only. Do not machine wash, soak or bleach product.
Rinse immediately and dry thoroughly after wearing in salt or chlorine water.
Line dry out of direct sunlight.
Do not wear on rough surfaces. 

30 day returns

Full price
Size exchange, credit note or refund.

Sale or promotion
Exchange or store credit only. 

Warehouse sale
Final sale, cannot be returned. Please select carefully.

Please read the full terms and conditions listed here.

average rating 4.5 out of 5
Based on 6 reviews
  • 5 Stars
    5 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    1 Review
  • 1 Star
    0 Reviews
83% of reviewers would recommend this product to a friend
Review posted
Reviewed by Julia B.
Verified Buyer
Rated 2 out of 5

Shoulder straps too thin to support a larger bust

The piece is perfect in the stomach area but does not hold the bust of my size well due to straps being too thin. They are simply too thin and don’t hold well - they twist given weight they are supporting. Thanks for the opportunity to provide feedback

I don't recommend this product
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Review posted
Reviewed by Amelia
Verified Buyer
Rated 5 out of 5


I LOVE IT!! I went up a size, I am usually a 12F and went up to a G and I found the G fits so well!! Fabric is amazing, so well made, really beautiful quality!! LOVE the coverage and the way it holds everything in!!!!!

I recommend this product
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Review posted
Reviewed by Kellie
Verified Buyer
Rated 5 out of 5

Hugs me in all the right places, feels so luxurious on!

I was a admirer from afar for a while with Marvell Lane, as I had never had a one piece purchase from online go well.

My gosh does this fit beautifully. It hugs you in all the right places. I am a curvaceous 12 G hourglass/apple hybrid shape, and this made me feel so secure. This is important to me as a shorter person with big bust as often straps or styles are not adjustable in one pieces, or they gape at the back. This was not the case in this one, as all the straps are adjustable.

The fabric is very high quality. I have many other pieces of high price in my swimmers wardrobe, that do not feel as good as this does.

As a 41 year old woman whose shape has changed, this makes me feel beautiful.

Thank you for being a genuine brand of quality and unique design. I will be purchasing much more!!!

I recommend this product
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Review posted
Reviewed by Jen R.
Verified Buyer
Rated 5 out of 5


The best togs that I have ever worn. I grew a big bust from a very young age and I have never been able to find a good pair of swimmers. Size 12G. I felt confident at the beach for the first time. I will be living in these all summer long. Thank you!

I recommend this product
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Hi Jen, we're so happy to hear that you felt amazing at the beach in your new Ruby One Piece! Thanks so much for your review! - ML x

Review posted
Reviewed by Hanan M.
Rated 5 out of 5

Best Swimmers Ever 🤎

This is my second summer investing in Marvell Lane swimmers for myself!

I am a busty young mum of 4, who has always dreaded buying swimmers for summer, my boobs have never really fit comfortable in any, most of the time I would end up covering up or with the worst neck pain due to lack of support.

Not anymore!! 😊

I purchased the Ruby one piece initially because of the beautiful new print, but when it arrived and I tried it on I absolutely fell in love with it!

It is so comfortable, so flattering and just genuinely beautiful,

I purchased a 14F,

I wear a size 12G bra, but wanted some extra room for my trunk so I sized up and it is perfect,

I also purchased the brown sarong, the 2 together are perfect!

Very happy Customer 🧡

I recommend this product
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Hi Hanan, We're so happy to hear that you love your new Ruby One Piece so much:) Can't agree more - the Chocolate Sarong goes SO well with the Zahra Print! Enjoy! - ML x

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