Long Sleeve Swimsuit Plum - Monroe

Size Guide

Our sleek, elegant and versatile long sleeve swimsuit. You loved this style so much in Black that we are thrilled to release this classic piece in Plum with contrast Black mesh sleeves and hips. For surfing, swimming or simply styling under denim shorts at the poolside bar this piece is designed to offer easy poolside style. 

Our Monroe shape fits C-E cup busts. For AA-B busts, shop The Hepburn. For F-HH busts, shop The Hendricks.


Dispatch w/c 8th July

Not sure about size?
  • Fits true to size. If between sizes, go up a dress size. 
  • Built-in bust support including luxe under-bust elastic for lift and shape.
  • Elegant boatneck finish to sit across the collarbone.
  • Super soft powermesh sleeves and hips for a sculpted silhouette.
  • Medium cut on the leg with flattering but full bottom coverage and over-hip mesh to elongate the leg.
  • 25cm back zip for ease of getting swimsuit on and off.
  • Lucy (in sunglasses) wears a size 18 Hendricks
  • Jemeima (surfing) wears a size 12 Monroe
  • Emma (red head) also wears a size 12 Monroe
  • 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 sleeves and hips made of 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.
  • High quality, water resistant YKK zip in the back of the suit for ease of getting on and off.
  • 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
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    Jane T.
    United Kingdom United Kingdom

    Love it

    Firstly, customer service was brilliant. I returned the first costume as it too short in the body and swapped designs to the long sleeved version. Then I accidentally ordered a size 8... it's been a very long time since I fitted one of those. Deakin and Blue exchanged it no questions asked. My new suit fits perfectly, it's comfortable to wear and stylish. I'm very pleased. My only small quibble is I have a limited range of movement and I find it difficult to do up the back zip without assistance. I had to had a bit of extra length to the pull cord.

    Ingrid N.
    United Kingdom United Kingdom

    Such a beauty!

    Already have the X back in scarlet but wanted a long sleeve for the winter months swimming in the sea here in Cornwall. This is such a beauty - the cut and the mesh sleeves and leg inserts are extremely flattering and the plum colour is stunning and so different from what is normally on offer. I have a short body and long legs so my Monroe size 12 fits perfectly. As others have pointed out quite snug when you first put it on but fine after that. I did struggle to pull up the zip to start with but that was because I didn’t read the instructions in my impatience to try it on! It’s actually very easy to do up and get out of on the beach without exposing all! I have had loads of compliments wearing it and it makes me feel really good. Very comfy for swimming in. Am now contemplating buying my third Deakin and Blue swimsuit but can’t make up my mind which to get! PS how about doing a swim jacket to slip on over your swimsuits in the colder months? It could match your new swim shorts.

    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