24/7® Classic T-Shirt Bra 24/7® Classic T-Shirt Bra 24/7® Classic T-Shirt Bra 24/7® Classic T-Shirt Bra 24/7® Classic T-Shirt Bra
24/7® Classic T-Shirt Bra

Need help with sizing? Take the Fit Quiz

24/7® Classic T-Shirt Bra 24/7® Classic T-Shirt Bra 24/7® Classic T-Shirt Bra 24/7® Classic T-Shirt Bra 24/7® Classic T-Shirt Bra

24/7® Classic T-Shirt Bra

$49

62,488 Reviews

Rated 4.5 out of 5 stars from 62,488 reviews

24/7® Classic T-Shirt Bra

$49

62,488 Reviews

Rated 4.5 out of 5 stars from 62,488 reviews

Band

Size guide

Cup

Size

Size guide
Product Details

The first bra ever made in half cup sizes. Unmatched 24/7® fit, support & comfort, every day. Invisible under everything from T-shirts to cocktail dresses.

  • Memory foam cups mold to your shape & hide nipples
  • Adjustable straps with stay-put pleat – no slipping
  • No-show double-layer back
  • Unmatched fit in exclusive half cup sizes
  • Flexible, poke-free underwire
  • Scratch-free tagless label
Size & Fit
  • True to size
  • Moderate (demi) coverage
Bra Size Calculator & Chart

Thirdlove offers over 60 bra sizes from 32 to 44 band and bra cup sizes from AA to H cup, including our exclusive half cup sizes. Using your current bra size as a starting point, you can refer to the bra cup size chart below to refine your fit.

Bra Size Calculator & Chart

How To Use The Bra Size Chart

When using the chart to find your bra size, keep in mind:

  • The band size increases as you move from left to right. Move left or right within the row if your band doesn't fit.
  • The cup size increases as you move from top to bottom on the chart. Move up or down the columns if your cups don't fit. In between cup sizes? Go up or down a half-cup! And keep in mind if you want styles that are full coverage or not!
  • Bra sizes that share a row are sister sizes, meaning they share the same cup volume (though they have different cup letters). For example, at a glance they’re all just different bra sizes. However, the row with bra sizes 36C, 38B, and 40A have something in common: they all have the same cup volume but have different band sizes. The same goes for the row with bra sizes 38H, 40G, 42F, 44E, 46D, and 48C.
Bra Size Calculator & Chart

Measure snugly around your rib cage (underbust) and around the fullest part of your bust, in inches. Step 1 gives your band. For step 2, subtract your underbust from your bust and find the difference in your band's column. These are the sizes our Bra Size Calculator gives.

Step 1: Band size by underbust measurement (inches). Each range excludes its lower value and includes its upper value.
Underbust (in) Band size
24.9 – 28.5 30
28.5 – 30.5 32
30.5 – 32.5 34
32.5 – 34.5 36
34.5 – 36.5 38
36.5 – 38.5 40
38.5 – 40.5 42
40.5 – 42.5 44
Step 2: Bra size by band and by bust minus underbust (inches). Each range excludes its lower value and includes its upper value.
Bust − underbust (in) Band 30 Band 32 Band 34 Band 36 Band 38 Band 40 Band 42 Band 44
Up to 2.534AA
2.5 – 330B*32A*34AA*
3 – 3.530C32B34A
3.5 – 430C½32B½34A½
4 – 4.530D32C34B36A*
4.5 – 530D32C½34B½36A½
5 – 5.530E32D34C36B38A*
5.5 – 630E½32D½34C½36B½38A½
6 – 6.530F32E34D36C38B
6.5 – 730F32E½34D½36C½38B½
7 – 830G32F34E36D38C40B*
8 – 932G34F36E38D40C42B*
9 – 1034G36F38E40D42C44B*
10 – 1134H36G38F40E42D44C
11 – 1236H38G40F42E44D
12 – 1338H40G42F44E

* Also the result when the difference is exactly 2.5 in: 30B, 32A, 34AA; 4 in: 36A; 5 in: 38A; 7 in: 40B; 8 in: 42B; 9 in: 44B.

The calculator only gives a size for an underbust over 24.9 in, up to 42.5 in, with a difference of up to 13 in. Blank cells and measurements outside these ranges have no size in the calculator.

Bra Size Calculator & Chart
Fabric & Care
  • 76% nylon/24% Spandex
  • Machine wash in cold, lay flat to dry
  • If machine washing, use a garment bag
Shipping & Returns

Perfect fit promise: Exchanges free for 60 days for all eligible 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.

Complete the Look

Similar Loved Styles

What Our Customers Are Saying

  1. Elizabeth P.

    Rated 4 out of 5 stars

    Pretty nice! 4/5

    It’s a pretty good bra for me. I like that the cups keep my breasts forward instead of flaring out in front of my armpits. I’m happy in 32e right now, but could see how a 32e1/2 or a 33 band might be better (the 34 band is too big). I’m 30. 5 under bust and 37 at bust, shallow on top. Nipple coverage could be better, and the taupe color is a little dingy on me, but acceptable.

    Cup Size
    E

  2. Stacie H.

    Rated 5 out of 5 stars

    Love it! This one is the perfect bra!

    This bra really is excellent. It is lightweight, thin, and a perfect fit. I never have to adjust the straps. It kind of feels like I'm not wearing a bra most of the time. It is great for summer and I feel comfortable every time I put it on. I will definitely buy this one again and also get it in a different color!

    Cup Size
    C

  3. Nichole M.

    Rated 4 out of 5 stars

    I like it a lot

    I like it a lot but the band gaps significantly between at my sternum so doesn’t quite give me the support I need. I also have Ultra High Profile implants so that may be why.

    The quality is great and the bra itself is comfortable, I just wish the cups were deeper for us more forward-projection people lol

    Cup Size
    D 1/2

  4. Candice N.

    Rated 4 out of 5 stars

    Comfy Everyday Bra

    This bra is well made, supportive, and has the quality I’ve come to expect from ThirdLove. The straps aren’t my absolute favorite since they can show a little texture under tees, but overall it’s a solid, cozy bra. Their 100% cotton bras are still my go-tos for ultimate comfort.

    Cup Size
    D

  5. Rebecca P.

    Rated 4 out of 5 stars

    Happy, But Watch Out w the Online Fitting Took

    Love the color, fits great. However, I did find the online fitting test to be poor- I've gained weight since purchasing prior bras and knew I needed larger cup sizes AND that the larger circumference implies larger cups but the online fitting test gave me my old small size even with new measurements. Fortunately I knew to size up from a 34 to a 36 to get the correct fit in CUP size as well but otherwise these wouldn't fit.

    Cup Size
    C 1/2