Due to high demand this item is on backorder
Flatsea S
$65.00
or 4 installments of $16.25 by 
More info
Its a Flatsea with super powers! It’s a high compression Flatsea with a super layer built-in only over the chest area for extra super compression. It’s still not a binder in the traditional sense, but it can’t get any closer for a swim top.
This fully lined top comes only in super compression in 3 basic colors: black, navy, and grey
- Fully lined
- 85% Polyester 15% spandex
- Machine wash in cold water
- Imported
Backorder Information
For items with delayed shipping dates
USA Continental Orders
If your order includes an item currently not in stock but available for delayed shipping, your order will be shipped in multiple shipments with the available items first and the delayed shipping items later once they're back in stock. Backordered items will ship within the approximate shipping window stated in each product page. Estimated shipping dates can be changed without notice. Items may be shipped earlier or later than estimated shipping window.
*If you would like to request an exchange for an item(s) that are not Final Sale items, please send the item(s) back with your request on your Returns & Exchanges form. We will process your request and ship your exchange out to you once all the items you requested are back in stock.
Canada and International Orders
International orders will be shipped once all the items in the order become available.
Alice (verified owner) –
I just received this top in the XL, black, and I feel like it has already changed my life. I tried it on and it felt and looked so comfortable – exactly what I wanted. I’m excited to go to the beach for the first time in years!
S (verified owner) –
Trans masc guy here! This top changed my life. I refused to swim for years because of dysphoria and not being able feel comfortable in anything. This top makes me not even think twice about swimming and it doubles as an excellent work out binder. I got a medium and I am a DD chest and have a small frame. I usually wear L t-shirts and chest is about 40 inches around. It fits perfectly and covers my pudgy stomach. This doesn’t make me flat (nothing will) but it gets me pretty close and makes me comfortable enough to not be wearing a t-shirt at the beach. Since it isn’t a straight up binder, it doesn’t compress a ton and has some give to it, but that’s good when you’re doing any kind of activity. You really shouldn’t bind tightly when working out or swimming anyway because you can get seriously injured. It feels pretty thick, I mean there’s 3 layers of fabric here, but it is super comfortable. The arm and neck holes are definitely small but that is helpful for a large chest like mine to prevent some excess bulging in the armpit reagion. The bottom hem sits right at my waist and does not roll up at all. I got the black color so it would maybe hide my rolls but I think i’ll definitely be getting another fun color in the future.
sloankesler (verified owner) –
I’m a trans man and normal binders compress too much for my weak chest (I have an old injury) but the flatsea s works to compress and it doesn’t push too hard on me! It’s the perfect amount of pressure and it’s comfortable to work out in, I haven’t been swimming in it yet but I’m sure it would be comfortable. The only complaint is the small arm holes that press on my armpits but after a few wears it feels significantly better, I am 210lbs and a B cup, a large fits me very nicely
Adrian (verified owner) –
Hey everyone! I’m a trans masc guy, and this top is already doing so much for me. I’ve been looking for a way to bind without using an actual binder, and this is by far the best item for the job that I’ve come across. I’ve had it for a couple months now, and the top remains in great condition, even after daily use. It is extremely comfortable and easy to breathe in, which is good if you’re an asthmatic like myself! It has a good range of motion, and while it doesn’t flatten as much as a traditional binder would, it beats every other binder-less method I’ve tried. So far I’ve only worn this out of the water as an alternative binder, but I’m positive that swimming in it is going to be a breeze, and I’m very excited! Best of luck to everyone.~
JM (verified owner) –
Life changing? Absolutely. I’ll never forget this top. Are these other reviews even real?! I was so excited for this swim top to arrive, but almost lost my arm — and definitely lost some pride — while trying to put it on. When I finally figured out the front from the back, I could hardly get it over my shoulders. I checked the size three times, because surely it was wrong. But I crossed the Medium size measurements on this site with my own, and it definitely was supposed to fit (I also wear Medium clothes/binders in men’s and women’s). Do you know how embarrassing it is to recognize how alone you are when you’re halfway stuck in a binding swimsuit with no one around to help?! Lord, never again.
Sebastian (verified owner) –
This is the first time I’ve felt actually a bit more comfortable in my own skin in a long time. the X-Large was a bit small but outplay customer service was quick to respond and helped me exchanging for a larger size. the XX-Large fits way better and while it can’t completely flatten my chest (thats a tall ask for someone with DDD/F cups) I can look down and not feel as dysphoric. Hoping to combine this with transtape and jammers for a completely boyish look!
Noah –
this has changed my life. i got a medium but when I looked in the mirror it was big. after some pouting i decided to try a shirt on and holy hell i started crying. i have never had a binder before and when i looked in the mirror i was flatter than i have been in years. and it is so comfortable. like sleep in comfortable. honestly if you are reading this i would 100/10 recommend this
Jamie (verified owner) –
My teenager stopped swimming when they went through puberty. After getting this top they love to swim and feel comfortable in their body again! The compression works really well without being too tight. I ordered a size up just so it was a little baggy and I’m impressed with how well it works. This top is a game changer!
Jess (verified owner) –
Well all I have to say is this top is amazing! It does not make me flat flat, it its the best I can get. I got this before my trip to lake Tahoe and I wouldn’t have been able to swim without this. I’m getting another one now 🙂
Sid Mydland (verified owner) –
I’m a transgender man and this top did nothing compression-wise, it was no better than a sports bra. The one I ordered was slightly too small, which is not a problem, but if I ordered one that fits a bit better it probably would’ve done even less. The cut is androgynous, so that could definitely make it worth it for some people. It did not help me with my dysphoria at all, but it could work for some people I guess. But with barely any compression this really wasn’t worth it to me at all.