Signature Swimsuit Navy - Monroe

Size Guide

Our best-selling and award-winning Signature Swimsuit in classic navy and black is a perfect cossie for your weekly swim and a good quality, trusted holiday staple. You'll love the built-in bust support and the flattering sweetheart neckline. Our Monroe shape is designed to fit C-E cup busts.

Don't forget to go up a dress size in this style as the fit comes up a little small.


We are currently restocking this item. Preorder for dispatch w/c 13th December

Not sure about size?
  • Fits small to size. We recommend going up a dress size with this style. So if you usually wear a size 12, order a 14 in this style.
  • Luxe under-bust elastic for lift and shape.
  • Medium cut on the leg with flattering but full bottom coverage.
  • Our Monroe model Amanda is 5'10 / 178cm tall. She usually wears a UK size 14 and a 36D bra. Shown here wearing a Deakin and Blue size 14 Monroe.
  • Super soft, high quality, sustainable Italian Lycra® with neckline, waistline and hips highlighted in soft & sculpting Italian powernet mesh.
  • Lycra® made from a recycled yarn called ECONYL® - made from regenerated waste such as old fishing nets and industrial plastic scraps.
  • Durable and designed to last. Our chosen Lycra® is twice as resistant to chlorine, salt water and oils than standard Lycra. Full UV protection.
  • Designed and manufactured responsibly in London, UK.
  • Rinse after every use and hang to dry. Machine wash at 40° after every 2-3 uses. See full details on how to care for your swimwear.
  • 78% Recycled Polyamide, 22% Elastane.
Customer Reviews
5.0 Based on 6 Reviews
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Filter Reviews:
    United Kingdom United Kingdom

    Gorgeous material and very flattering cut. I usually wear a size 12 (and 32 E bra size) and I ordered the 14 in this as suggested and it fits very well and is comfortable and supportive. I love it and will definitely be a repeat customer

    Ruth L.
    United Kingdom United Kingdom

    Favourite swimsuit

    I already have this in cobalt, so couldn’t resist treating myself to the Navy version. The most comfortable, well fitting and flattering swimsuit I’ve ever had. Haven’t tried open water swimming yet, but we have a SwimSpa and you have to be very careful what you wear as the pressure from the water flow can lead to things coming uncovered. This swimsuit stays perfectly in place and saves any embarrassing situations! So pleased I found Deakin & Blue ...

    Susanne T.
    United Kingdom United Kingdom

    Signature Swimsuit Navy Monroe

    This is the best swimsuit I have ever bought and well worth every penny. It is both for swimming and for sun-bathing due to its extremely stylish design. It has had a lot of wear and it still looks like new. It is going to remain a standard item in my swimming wardrobe.

    fiona s.
    Australia Australia

    Signature Swimsuit Monroe style

    I ordered this swimsuit during lockdown not knowing ... A. If it would fit. B. if it would suit my body type. C. If it would even get from the UK to Australia. Well, it arrived, it fits, I love it and it is now my preferred swimsuit for my daily ocean dips. In fact I even chose to put it on damp from yesterday (winter in Aus) instead of getting an alternative dry swimsuit from the draw.... it is comfortable for freestyle swimming (doesn't pull at the shoulders), it holds everything in, it is warm for cooler water and it looks great. (Personal opinion, no one has actually told me...I am guessing they are all too PC to speak. Haha). Love it.

    C H.
    United Kingdom United Kingdom

    Stylish and comfortable

    This smart navy swim suit fits to size. Feels comfortable and has garnered compliments from other woman swimmers.

    Did you know?

    Our award-winning swimwear has been featured in The Guardian, The Times, The Telegraph, Women’s Health & more

    Here for a good time and a long time; our swimwear is thoughtfully designed to last season after season, swim after swim

    We have over 500 5* reviews for our products on our website, Google & Facebook - our customers love what we do!

    We offer free delivery and returns in the UK on all orders over £100: even more reason to treat yourself