People with large tiddies, summer is coming.

It's okay, my boobs laugh at those lacy things, too.

And as a current 36K US myself (that's a 36I British), we need to talk about how we're keeping our underboob from rashing out and splitting apart when the temperature rivals that of the hotter regions of Hell this summer.

I'm about to make bra recommendations. None are sponsored. All (okay, most) have been actually worn by me, on my 36K's (which have also been 38J's and 40I's in the recent past - the weight loss dropped my band size and my breast density, but my breast volume is the same as it's always been). All are the best of multiple brands' versions of the style that I have tried in the past.

For everyday wear: FeelinGirl LLC's Everyday Wireless Unlined Bra. I wear size XL. Fun fact: I've had two separate laminectomies (that's where they remove a hunk of your spinal vertebra to get to the cord/nerves underneath) at T10-12. Those happen to be exactly at the level where my bra band sits. As a matter of fact, standard back closure bras sit right on my Fibromyalgic scar site. These bras are constructed like a cross between shape wear and a standard sports bra. They do provide legitimate light support, enough to keep my underboob vented.

For strapless wear: Every large breasted woman needs a good bandeau bra, for casual strapless wear. If, for no other reason, sunburned shoulders. In researching this post, it doesn't look like Yitty makes their bandeau bras anymore, which took me some time to wrap my head around. A few years ago, when I discovered shape wear beyond high-waisted shorts, I tried the brands on the market making bandeaus at the time, and Yitty was far and away the best bandeau strapless bra for large breasts. Which means I can't recommend any of the brands that have popped up in the meantime, as my original Yitty bras are still in my wardrobe, going strong. However, based on past experiences with the brands, I'd try FeelinGirl's or Shapermint's before trying any of the others I'm seeing on the market here.

Update, 5/22/2026: FeelinGirl ran a huge sale on what they call a bandeau bra... it's constructed like a standard strapless bra, which have never worked for me. It's padded, and it had back closures. It's not the "tube top" style I need, so it's going back. I still haven't tried Shapermint's version.

For no bounce whatsoever: Glamourise's Full Figure, Plus Sized, No-Bounce Sports Bra. These unsexy motherfuckers run tight, so I'd get a 38J for myself right now, while measuring at a 36" underbust.

For deep plunge & racer back wear: Delimira Women's Front Closure Full Coverage Bras. Mine are size 40H, and they still fit and lift well with the straps all tightened to their shortest point. Because the sizing stops at an H cup, if you're like me, you may need to work with sister sizing.*

And as for swimwear: yes, there are brands that make bra-sized swimwear, and in extended sizes!

*A brief note on sister sizing - bra cup size is relative to the bra band size. I went through the size progression I did, because to go down two sizes in the bra band, to keep the cup size the same as when I started, I had to go up two cup sizes to compensate for sizing down in the band. Because bra bands generally have at least three levels of eyes to hook your bra to, knowing how cups and band sizes work in proportion to each other means that while your actual fit will fit you the best, a sister size will also be a comfortably fitting bra for you, if you need to go up or down a cup size for any reason.

Oh, and if you don't know your true size, here's the A Bra That Fits Calculator. Go get a measuring tape and learn how to fit your own undergarments. That can help a LOT with the underboob issues.

Now, as for that rash and splitting skin issue...

My skin is absolutely loving kokum or mangosteen butter. In it's raw state it's very solid, you may want to soften it up a bit and use a hand or stand mixer to whip it up with a little vitamin e oil for quick underboob application - I'd do 1 teaspoon of vitamin e oil for every 8 oz of kokum butter.

You can also make a dusting powder with your favorite kitchen starch - cornstarch, arrowroot powder, tapioca starch, etc. Place 8-12oz of your starch in a 16oz jar with a tight seal, and then scent cotton balls with your favorite EDPs, perfume oils, or essential oils to create your custom dusting powder fragrance. Seal up the jar with the starch and scent balls inside, and place in a drawer or cupboard for 12-24 hours to let the fragrance permeate the powder.

Now, it goes on in that order - kokum butter, then dusting powder. Then, put on your bra.

BONUS! How to clean your underwire bras without ruining them!

Grab your 2-3 gallon utility bucket. Sort your bras by color, unless you have multiple buckets, you'll be doing this in batches.

If your bras have embedded gunk in the armpits and under wires: Fill your bucket with 1-1 1/2 gallons of hot water (tap hot is fine), add your bras, then 1 cup white/distilled vinegar, and 1/2 cup baking soda. Give the bucket a good stir, and let sit for an hour or two before rinsing your bras thoroughly, and hanging them to dry.

If your bras are stanky no matter what you do: Fill your bucket with 1-1 1/2 gallons of hot water (tap hot is fine), add 1 tablespoon of Dettol and stir before adding your bras and stirring again. Let sit for an hour or two before rinsing your bras thoroughly, and hanging them to dry.