Size 34N Swimwear
Also labeled UK 34JJ and EU 75N
Looking for swimwear in 34N? The fit comes down to a band that stays level and cups with enough room for a very deep cup. Compare labels across brands with our Swimwear Size Chart.
Getting the Band Right in a 34N Suit
With a 34 band, the band should feel firm and stay level all the way around, even after you lift your arms. In a one-piece, the band area works with the body fabric, so a suit can feel tight at the ribs and loose at the waist at once. If you are unsure, judge the band first and the straps last.
Run a finger along the lower edge of the band. On a mid-range band it should sit flat with no rolling, and it should not leave a deep mark after you take the suit off.
Checking the Cups on a 34N Swimsuit
Wide straps can feel kinder on the shoulders with an N cup, as long as the band is doing its share. If the cup edge digs in across the top, settle your bust again before deciding the cup is too small. Check the center of the suit between the cups, which should sit close to your chest.
UK brands print it as 34JJ. The doubled JJ sits between a UK J and a UK K.
Torso Length in a 34N One-Piece
A one-piece has to fit your bust, your torso and your hips at once. With a very deep cup, the cups take up more of the fabric's length, so a suit can feel short through the body even when the band is right. If the straps dig in and the leg openings pull up, look for a longer torso or try a tankini.
Everyday bras live in our 34N bras.
Frequently Asked Questions About Size 34N Swimwear
What is 34N swimwear in UK sizing?
In UK sizing 34N reads 34JJ, since UK charts never use N, and EU sizing keeps 75N. Check which system each brand uses.
How can I tell if a 34N swim band is too tight?
It leaves deep marks, makes it hard to take a full breath, or pushes skin over its edges. On a mid-range band, ease it to the next setting and check that it still stays level when you move.
How can I tell if a 34N swim band is too loose?
It rides up at the back, lets you pull it more than a couple of inches away from your body, or needs tight straps to feel secure. Fasten it firmer and recheck it once the suit is wet.
Do 34N swim tops and bottoms need the same size?
No. Size swim tops by your 34N bust and swim bottoms by your hips and waist. One-pieces are different, since the bust and torso both need to fit in one garment.
How should 34N swimwear feel after it gets wet?
It should feel close to how it felt dry, with the band still level and the cups still covering you. If the band feels loose after a swim, it was likely a little loose to begin with, which shows fast on a mid-range band.
Why do 34N one-piece straps dig into my shoulders?
Usually the torso is a little short or the band is not carrying enough of the weight. With a very deep cup, check both before tightening or loosening the straps.