24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH 24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH 24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH 24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH 24/7® Classic Strapless Bra 24/7® Classic Strapless Bra 24/7® Classic Strapless Bra 24/7® Classic Strapless Bra 24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex
24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH

Need help with sizing? Take the Fit Quiz

24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH 24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH 24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH 24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex,modelH 24/7® Classic Strapless Bra 24/7® Classic Strapless Bra 24/7® Classic Strapless Bra 24/7® Classic Strapless Bra 24/7® Classic Strapless Bra, Black - Thirdlove - Nylon/Spandex

24/7® Classic Strapless

$68

5,224 Reviews

Rated 4.4 out of 5 stars from 5,224 reviews

24/7® Classic Strapless

$68

5,224 Reviews

Rated 4.4 out of 5 stars from 5,224 reviews

Band

32

Size guide

Cup

A

Size

Size guide
Product Details

Never falls down, always up for fun. Naturally boosts & shapes without heavy padding. Multi-way wear to match every style & occasion.

  • Supportive foam cups lift without spilling
  • No-slip silicone grip top & bottom
  • Removable straps for multi-way wear (incl. 2 sets)
  • Unmatched fit in exclusive half cup sizes
  • Flexible, poke-free underwire
  • Scratch-free tagless label
Size & Fit
  • True to size
  • Moderate 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
  • Use a lingerie bag for machine wash
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

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What Our Customers Are Saying

  1. Nicole K.

    Rated 4 out of 5 stars

    Pretty good

    This bra is pretty good once you get it on. It's a little tricky to get on and in place because there is so much silicone grip (which is obviously great so it stays in place!) but getting it on is kind of a pain. To me it seems to run a little bit small in the band.

    Cup Size
    F
    Fit
    Runs small
    Comfort
    Average

  2. Lesley W.

    Rated 3 out of 5 stars

    Is it a sizing issue?

    The 24/7 classic t-shirt bra is my absolute go-to, so I figured this would be an easy pivot since I needed a strapless. But for some reason, I couldn't get the sizing right. Ordered my regular t-shirt bra cup size, but it gapped quite a bit. I sized down a 1/2 size, but the problem got worse! Sadly, I gave up.

    Cup Size
    C
    Fit
    Runs large
    Comfort
    Average

  3. Stephanie G.

    Rated 5 out of 5 stars

    The perfect fitting strapless bra

    This bra fits well, doesn't have top gape like pretty much every other strapless bra I've tried. I would love it in a slightly lower cut version (but maintaining the bottom support so still not cup gape), but overall it's fantastic.

    Cup Size
    E
    Fit
    True to size
    Comfort
    Good

  4. Marie G.

    Rated 4 out of 5 stars

    Supportive, versatile strapless bra

    Strapless bras are tough for a larger chest, but this bra makes it much easier and more comfortable!

    Cup Size
    E
    Fit
    True to size
    Comfort
    Good

  5. CELINA R.

    Rated 5 out of 5 stars

    Always hard to find good,

    Always hard to find good, comfortable bras and strapless is an extra hassle. This bras has really good grip, right size for me and pretty comfortable. A little more difficult to get on because you cant latch in the front and then turn it around because the grip is that solid. So takes some practice, but I like it.