Find your fit

Size guide

Tops and bottoms are sold separately, so you can pick the right size for each half. Every product page also has a fit note for that style.

Our sizing got an update

Bikinis made from November 7, 2025 onward use our updated sizing, made to fit bigger busts better. Every product page tells you how that style fits, so check it before you pick. Not sure? Email us and we'll help.

Meet the Mob

Find your fit twin. Georgia wears a small top and small bottom in every style.

  • Strawberry

    Georgia

    Top
    S
    Bottom
    S

    5'5" · 32B · 24" waist · 35.5" hips

  • Coconut

    Sydney

    Top
    M
    Bottom
    M

    32C · 25" waist · 37.5" hips

  • Blueberry

    Sabrina

    Top
    L
    Bottom
    L

    32DDD / 34DD · 26" waist · 38.5" hips

“I typically wear a Large in our updated tops, and an XL in styles that haven't been updated. For reference, I'm about a 32DDD or 34DD.”

Sabrina, aka Blueberry

Bikini tops

Find your top size by cup

Cup sizeTop size
Itty bittyXS
B – CS
C – DM
D – DDDL
DDD – FXL *
DDD and upXXL *

* Some styles run big for bigger cups. See Blueberry's notes below for the ones to size down in.

Fuller bust? Blueberry's notes

Blueberry Approved styles are picked for DD cups and up.

DD and up: Blueberry Approved

  • Boomerang
  • Tootsie
  • Betty Boop
  • Happy Hour
  • Peter Rabbit
  • Ditto
  • Roman Blu
  • Every triangle with thick straps

DD and up: size down in

  • Abruzzo
  • Dairy Maid
  • Pandora
  • Demetra
  • Twin Flame
  • Strapless (sizing not adjusted)

Not Blueberry's pick for bigger cups

  • Barracuda
  • Jelly Bean
  • Poker Face
  • Angel Fish
  • Villa Noir
  • Water Lily
  • Luster
  • Web

D cups: go up to an XL in these.

A to D cups

Every style works for you. These can run a touch big, so size down if you're between sizes (Georgia wears a small in everything and doesn't size down):

  • Dairy Maid
  • Clair De Lune
  • Florence
  • Luster

Bikini measurements

Tops and bottoms

SizeXSSMLXLXXL
Waist23.6225.5927.5630.3233.535.77
Hip33.0734.6536.2237.8040.242.68
Bust31.5033.0734.6537.014042.2

The Mob's bottoms: Strawberry wears S (24" waist, 35.5" hips), Coconut M (25", 37.5") and Blueberry L (26", 38.5"). In Sto Posto, we all size down.

Bottom coverage

From most to least coverage. Tap a level to see its styles.

Full 35
  • Bella Vita
  • Brads Favorite
  • Butterfly Effect
  • Carousel Love
  • Desert Cowgirl
  • Disco Love
  • Energy
  • Fitzgerald
  • Ganache
  • Icecream Bandit
  • Lady Bird
  • Meet the Parents
  • Moon River
  • Motel 6
  • Mulberry
  • Mykonos
  • Paloma
  • Polly Pocket
  • Renaissance
  • Rosemary
  • Saint Tropez
  • Sicily
  • Table
  • Twin Flame
  • Yeti (Pantaloons)
  • Young Love
  • Tootsie
  • Tiger Tail
  • Dockside
  • Minnie
  • Love Bug
  • Nocciolo
  • Principessa
  • Nostalgia (Pantaloons)
  • Pomelo (Pantaloons)
Medium 25
  • Baby Cakes
  • Basil
  • Big Apple
  • Black Cherry
  • Cento Per Cento
  • Check Mate
  • Flash
  • Florence
  • Flower Dance
  • KOTJ
  • Love Bug
  • Monty
  • Penny Pincher
  • Pixie
  • Primrose
  • Sahara
  • Seafoam
  • Sugar Cube
  • Summmertime
  • Viper
  • Welcome to the Jungle
  • Umbria
  • Sun Bum
  • Gemini
  • Roman Blu
Medium cheeky 108
  • Apres Swim
  • Ariel
  • Astro
  • Atlas
  • Ballerina
  • Barracuda
  • Bejeweled
  • Bermuda
  • Black Friday
  • Black Tie
  • Blow Pop
  • Blueprint
  • Bondi
  • Bronco
  • Buckwild
  • Buttercream
  • Cappuccino
  • Caprese
  • Che La Luna
  • Cherry Fizz
  • Clementine
  • Colada
  • Dash
  • Desert Lily
  • Dolce Far Niente
  • Duchess
  • Dusk
  • Easy Breezy
  • Feline
  • Fizzle
  • Flower Showers
  • Forest Vine
  • Foxtrot
  • Fresca
  • Garbanzo
  • Gecko
  • Gimme More
  • Gingerbread
  • Glitch
  • Goldilocks
  • Heaven Sent
  • Hibiscus
  • Honey Glaze
  • Honey Pot
  • Honey Suckle
  • Hopscotch
  • Horseshoes
  • Hotter tot
  • Jasper
  • Jelly Bean
  • Jet Set
  • Joshua
  • Jungle
  • Juniper
  • Juno
  • Key Largo
  • Key Lime
  • Kit Kat
  • La Vie En Rose
  • Lavender Haze
  • Lemon Vine
  • Limoncello
  • Little Havana
  • Mai Tai
  • Mamba
  • Marmalade
  • Medusa
  • Mercado
  • Milky Way
  • Milos
  • Moxie
  • Naxos
  • Nostalgia
  • Olivera
  • Onyx
  • Ophelia
  • Orchard
  • Papaya
  • Peachy Keen
  • Pink Pony Princess
  • Popstar
  • Powder Puff
  • Pucker Up
  • Pyramid
  • Rae
  • Roadrunner
  • Rosalia
  • ROYGBV
  • Ruby Rosary
  • Safari
  • Scarle
  • Pomelo
  • Affogato
  • Pandora
  • Sto Posto
  • Aquamarine
  • Ranch Water
  • Savute
  • White Lotus
  • Athena
  • Betty Boop
  • Cherry
  • Gum Drop
  • Miss Dolly
  • Pink Polly
  • Plum Bum
  • Ripple Effect
  • Picture Perfect
Cheeky 101
  • Alla Spiaggia
  • Amore Mio
  • Abruzzo
  • Arancia
  • Azalea
  • Baby Doll
  • Boomerang
  • Bonnie
  • Bubbles
  • Carbon Copy
  • Citrus Kiss
  • Clair De Lune
  • Cloud Nine
  • Clyde
  • Coconuts Design
  • Cora
  • Cosmo
  • Currents
  • Daisy Dukes
  • Dandelion
  • Eclipse
  • Electric Smooch
  • Espresso
  • Film Noir
  • For the Frill
  • Fragola
  • French Kiss
  • Fruit Loops
  • Grape Vine
  • Impala
  • Innerbloom
  • Kiwi Kiss
  • Let the Kids Play
  • Love & Lace
  • Page 6
  • Periwinkle
  • Persimmon
  • Piper
  • Prickly Pear
  • Peach Pit
  • Peach Tart
  • Pistachio
  • Pixie Stick
  • Pretty In Pearls
  • Priscilla
  • Little Miss
  • Love Struck
  • Lucky Charm
  • Luster
  • Mariposa
  • Marigold
  • Angel Fish
  • Beach Break
  • Breakfast Club
  • Cactus Jack
  • Cindy Lou
  • Cobalt
  • Coquette
  • Cowabunga
  • Ditto
  • Dottie
  • Estella
  • Fig Jam
  • Fruit Salad
  • Fusilli
  • Grenadine
  • Guava
  • Heat Wave
  • Hotline
  • Hot Rod
  • Honey Bunny
  • Icon Baby
  • Jeremy's Favorite
  • Jukebox
  • Sapphire
  • Swan Song
  • Taffy
  • Thumbelina
  • Tropic Tease
  • Vitamin Sea
  • Wet Paint
  • Water Lily
  • Whispering Angel
  • Wisteria
  • Mars
  • Maverick
  • Mob Ties
  • Motley
  • Georgie Porgie
  • Birthday Suit
  • Liquorice
  • Queen of Hearts
  • Bittersweet Samba
  • Double Dipped
  • Paros
  • Scorpio Smooch
  • Brownie Points
  • Demetra
  • Rodeo
  • Donatella
  • Bambina

Bottoms, from the back

All bottoms pictured from the back.

One pieces

SizeXSSMLXLXXL
Waist23.6225.5927.5630.3233.535.77
Hip33.0734.6536.2237.8040.242.68
Bust31.5033.0734.6537.014042.2

One pieces are final sale, so double check your size.

Cover-ups: scrunch dress

Garment measurements

SizeSML
½ Bust1212.513
½ Waist10.51112
Hem (around the bottom opening)6266.572
Length23.52425

Cover-ups: chiffon dress

Garment measurements

SizeSML
½ Bust454549
½ Waist404244
Hem (around the bottom opening)575961
Shoulder width3940.341.6
Length788082
Sleeve length68.57071.5

Men's swim shorts

SizeSMLXLXXL
Waist3133353841
Hip3739414447
Inseam5.55.55.55.55.5

How to measure

  1. 1

    Bust

    Around the fullest part of your chest, keeping the tape level.

  2. 2

    Waist

    Around the narrowest part of your natural waist.

  3. 3

    Hips

    Around the fullest part of your hips and bum, feet together.

Still unsure?

Email us your measurements and the style you love, and Blueberry will help you pick. We reply within 1–2 business days.

Email us