Interchangeable Christina Black Push Up Plunge Cup | The Bra Lab

Size Guide

Our sizes run a little different, so enter your regular bra size in the dropdown below to see which of our sizes is right for you.


Before you order, make sure to consult our fit guide as you need to convert your size:


First, pick a cup. Convert your size using our sizing guide - this is a must in order to get the right fit. Our cups are based off of a 34 band size. 

The Bra Lab Christina Cup is a push up, deep plunge, molded cup with foam padding and underwire that provides maximum support and shaping. Comes with an extra removable push up insert. The push up style is not a full coverage cup. 


These redesigned cups with dual side closures allow you to create multiple looks with the same cup by the interchangeability of our back straps and shoulder straps.  

After you chose your cup size, style and color, you must chose a back strap to attach on.  

Multiple strap position options on the inside of the cup create versatility, like no other bra. Cups can be worn with back straps for a strapless bra as well. 

Not sure which bra to get? For general questions send us an email to or a pic of your outfit to our stylist

Fit Tip: Runs small. We recommend sizing up if you are a 34-38 band size.

Material: Nylon/ Spandex

Care: Hand Wash, Lay Flat To Dry. Do not ring out or hang dry. 

Patented Design

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Before ordering please use the correct cup style size chart below to convert your size





"I am a BIG fan of bra's in general and with having a larger bust, I have STRUGGLED to find " the one", until I got my first bra from Bra Lab AND a strapless one no less! I have a new obsession and want one in every color along with the bands & straps. It is THE most comfortable & supportive strapless bra I have ever worn. I would shout from the rooftops for every girl to purchase this and it will change your life, literally. The options to mix and match is a phenomenal idea, gives you endless options! A bra is part of your every day life and most women can't wait to take theirs off as soon as you get home, I wore mine yesterday as a matter of fact for over 15 hours, no issues what so ever. It also washes fantastic! Honestly, just buy the bra and see for yourself, I wont' say "I told you so.""- HAPPY CUSTOMER


"The Bra Lab expanded my wardrobe options and made buying clothes fun again. I no longer need to worry about wearing backless pieces, see-through shirts, or having the straps show - I want them to show!" - HAPPY CUSTOMER