Sizing & Fit

We know finding the right size can be a pain, and that you can end up with a load of different sizes in your wardrobe despite your body staying the same.

So if you’re unsure, give us a shout over email ( or Instagram (@gykoswim). We’re always happy to make a suggestion or tell you what the girls on our Instagram are wearing.  

In the meantime, here are our top sizing tips.

Our bikinis are double lined, which means more support and less stretch - if you’re usually between sizes, size up for comfort.

Our tops in order of support from most to least: 

Our bottoms in order of coverage from most to least: 

Our tops fit cup sizes from AA - DD but vary in suitability - get in touch so we can recommend the best style and size for you.

Top Two comes up smaller due to the back strap being non-adjustable - size up if you have a small frame but a larger bust.

Top Three has been designed to support larger busts, so if your bust is in proportion to your frame we suggest sizing down.

We’d love everyone to be GYKO Girls and will be looking to bring out more sizes in future production runs. If we don’t offer your size currently, please get in touch so we can hear what bikini styles you’re after and what best suits your shape.


GYKO size chart