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Underworks Tri-Top Binder - 983

Regular price $47.00

This binder is a great option for folks (such as trans men, FTMs, gender queer people, and more!) looking for a sturdy binder, as well as a full range of motion. It binds down to the bellybutton, giving awesome chest coverage with three layers of nylon & spandex, while leaving the wearer free to move around. Some folks will take the bottom of the binder and roll it up a bit to avoid compressing the belly- a great compromise between having a flat chest and comfortable body. 

Three powerful layers of medical industry grade 70% nylon and 30% spandex throughout the front, and a single back layer, provide maximum comfortable chest binding.

Binder Sizing: With arms down on side, take a snug measurement around the fullest part of your chest. All measurements below are in inches.

X-small: 28-30
Small: 31-33
Medium: 34-36
Large: 37-40
X-large: 41-44
2X: 45-48
3X: 49-52

Specifications for Underworks Tri-Top Binder - 983

Made of Nylon, Spandex
Made in USA

Customer Reviews

Customer Reviews

Based on 130 reviews
Binds really well for bigger chests

Fabric can be kind of itchy sometimes, and sometimes it folds weird (likely due to chest size), but overall it's the most comfortable binder we've found so far. Would recommend.

Fits very small

I ordered this in size Small and since I had previously ordered the style 988 (concealer) from the same brand I could be confident in the size, but it fits FAR smaller! I am a pretty small individual, like 30A, maybe 30B depending on time of the month, and so the Small (size chart says fits 32-35" chest) should have been fine, but it is super tight. It's not even just the level of compression, the arm holes are so small they dig into my shoulders as well. Basically for an actually comfortable safe fit you need to go at least one size up from what the size chart tells you, at least for the smaller sizes.

sites like this are the problem

resellers like you are what cause the issue with chest binder shortage. you are why people cannot feel safe with themselves. yeah. go ahead. buy underworks products in bulk and then re-sell them at a higher price.

you're all such pieces of shit. i genuinely hope that your site eventually crumbles into nothing because of this selfish bullshit.


Pretty decent.

Noémie Elbaz
Too tight

Was too tight around the shoulders so it doesn’t really fit people with larger shoulders. Was kinda disappointed. Also kinda itchy ? Not the best sorry.