Size Guide
LILO For the more conservative mermaid, our fullest coverage bottom is perfect for you! NEW improved fit and slimmer band.
  • REVERSIBLE! 'BOYTOY + TOYBOY' prints exclusively designed by Lali + Layla. Print placement can vary, each unique.
  • Fuller coverage. Seamless edges. 
  • Model is wearing a Small. Check our sizing chart here for more info.
-Mix N Match with our separate tops to create your own unique look!
Exclusively designed and individually hand made by Lali + Layla for you mer-babes.

Related Items


We know how tricky sizing can be and we want to help you find the perfect fit. The below charts are bust and dress/pant sizes. This is a general recommendation chart for our swimwear, please see below list where we go more in depth for every specific style as to how they may run!!!

For tops: If your dress size and cup size fall in two sizes, (ex: S + L) the size in between (M) would be the best fit. Do not simply go by cup size, dress size should be taken into consideration. 

For bottoms: We run on a snug active use fit and recommend sizing up if you are unsure.




EZE - Basic bralette with shorter straps for uplifting look. Take into consideration band and cup. Runs smaller. Perfect for all cups. XS-L

SOPHIE - Runs a tad small. Take consideration cup size and dress size, size up for better coverage. Great for smaller cups. XS-L

ARIEL - Runs true to size. Skimpy fit. Solids stretch more than those with metallic finish. XS-L

AXL - Runs true to size, size down for a skimpier cut top. XS-L

JASMINE - Runs true to size and can be adjusted in the back. Very open minimal coverage front, not for sport active but for beach babe. XS-L

ALAMFI - Runs true to size. Great for active use. XS-L

JAX - Underwire cups run true to size. good for larger busts. XS-L

OLIVIA - Runs true to size. Braided straps are not adjustable so may not be suitable for very very petite/shorter girls. XS-L

PERCI - Runs true to size, slightly larger, size down for a more snug supportive fit. XS-L

GINGER - Runs snug. Side boning for support. Not recommended for anyone larger than an average C cup. S/M M/L

ROCKY - Supportive underwire cups run true to size. Adjustable back. Ideal for all busts, big or small. S-L

VENUS - True to size. XS-L

LUNA - Runs true to size. Take consideration cup size and dress size. XS-L

KAMRON - Now runs true to size! Sporty and supportive. Great for active users and best for large chests. XS-XL

STASSY - Snug active style crop. Runs true to size, only size large runs big. XS-L

FLINT - Rashguard crop with long sleeves. Runs true to size, great for smaller and larger cups. S-L



INKA - Super cheeky. Thin string bands. Runs a bit big, size down, especially on solids for a more snug fit. XS-L

BLEECKER - Super cheeky Brazilian cut. Runs true to size. XS-L

JASPER - V-dip shaped bottoms, low dip front coverage. Very cheeky. XS-L

CHELSEA - True to size, size up for less snug braided bands. Wear it backwards for more or less coverage. XS-L

BRIDGETT - True to size. Retro 80’s + 90’s high waist cut. S-L

EROS - Runs true to size. Size up for more relaxed fit on hips. XS-L

MONACO - Runs a tad small, lighter stretch on the bands. Size up for a more relaxed fit on hips. XS-L

HUDSON - Side tie adjustable bottoms. XS/S M/L

STEVIE/LILI - Runs slightly larger. Cheeky coverage. XS-XL

MADISON - True to size, medium cheeky coverage. If between sizes or unsure, go up in size as it is a snug fit. Wear it backwards for more or less coverage.  XS-XL

SELENA - High waist bottoms with very cheeky coverage, ties in the back make waist adjustable. S-L

ZAMA - True to size, mid waisted fit. Cheeky. XS-L

LILO - Fullest coverage bottom for the more modest mermaid and widest band. Runs true to size, but for better booty coverage go up a size. XS-L



TULUM - Runs true to size. Lace up back controls straps. Cheeky coverage. XS-L

CIA - Cutout style one piece, runs true to size. Cheeky booty coverage. XS-L

LENI - Lace up front has a very minimal coverage. Cheeky booty coverage. XS-L



Still not sure? E-mail us at or check out our Instagram page @lali_and_layla_swimwear and check out some pictures or ask our admin what they think based on the photos on your IG!!! We are more than happy to help. Every body is different and our sizing chart should be taken as a recommendation.

If the fit is just a little too snug we do not recommend going up a size as the spandex will relax and stretch a little after a few wears.


Please note:

As our pieces are artisanal hand crafted one by one, there may be about 1 cm allowance difference in pieces.

Seamless bikinis have a tendency to fold over slightly, exposing the edges of reversible side, this is normal.

Print/pattern positioning of each piece will vary, each being unique and no piece will ever look the same. Differences in screen resolution may result in colors appearing lighter, darker, duller, brighter, etc.