Returns & exchanges free for 60 days for all U.S. orders. Please try on the bra to ensure a good fit, making sure to leave the original tags attached. We only accept underwear in unworn condition, with original tags, in its unopened original polybag. Items marked final sale are not eligible for return or exchange. If something’s not right, we can help. Our Fit Experts are available via live chat, or email to answer any questions you might have.
Read moreT-Shirt Bra Style Guide: Fit, Fabric & Function

ThirdLove T-Shirt Bra
Let’s start with the basics - what is a t-shirt bra? Simply put, a t-shirt bra is a comfortable one meant to give a smooth, seamless silhouette under your everyday clothes, like t-shirts. Here at ThirdLove, our t-shirt bras mimic your body to give you optimal comfort while you look fabulous. Our 24/7® Classic T-Shirt Bra is our #1 bra - for good reason! It’s the bra that started it all, and the first one we created was in half-cup sizes, so we feel passionate about their style and versatility. We have a wide range of t-shirt bras, including the. 24/7 Classic t-shirt bra, the Form 360 Fit wireless bra, and the Comfort Stretchhirt bra, so you can find the perfect style for you.
Finding a T-Shirt Bra That Fits
The t-shirt bra is our best selling style because of its great look and comfort, but to really make the most of this style, it is vital that you have the correct fit. We know that finding the right size is difficult. In fact, a whopping 80% of women wear the wrong bra size! That’s why we created our online Fitting Room Quiz so that you can be confident and comfortable while wearing the right size for you. Simply take this online quiz to discover your perfect bra size and recommended styles to suit you and your body.
There are several important factors to consider when finding that perfect fit:
- A t-shirt bra should fit like a glove - it should hug your body without being too tight or too loose.
- The band should fit nice and snug so that it stays in place - if it slides up or down then this size isn’t for you.
- The cups should hold your breasts without any gaping, spilling, or discomfort.
- Always keep your straps adjusted to the perfect length to ensure you have the right lift without shoulder strain. If your straps dig into your shoulders, or keep sliding off, then they do not fit correctly.
- If you choose a t-shirt bra with an underwire, then the wire should follow the natural curve of your breasts without poking into your breast tissue.
- Finally, the gore (the section of the bra that fits between your breasts) should lie flat against your sternum without leaving a gap between your bra and your skin.