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Sizing Chart

Have sizing questions? Check out this guide:

Bikini Tops

Size Bust Size Cup Size
XS  30-32" A
S 32-34" A-B
M 34-36" B-C
L 36-38" D


Bikini Bottoms

Size Waist Size (Jean Size) Hips
XS  23-25" 30-32"
S 25-27" 32-34"
M 27-30" 34-37"

 *The Monterey Bottoms are adjustable so you have more give in sizing. 

**Still not sure what size would fit you best? Email us at or DM us on Instagram (@RIVIswimwear) for any sizing questions. We would love to help find your perfect fit!**


"They quality is really impressive and considering my boobs are really big. The top fits so nice and is very comfortable.  I want to order them all!" - Lindsey

"This bathing suit is f*cking amazing! I need all my bathing suits to fit this way." - Micaela

"I had a fantastic buying experience with RIVI. I discovered their sexy bikinis on Instagram, and was excited to support a small business. Fit was great, and I love wearing my RIVI bikini!" - Nadia