Skip to content

This website uses cookies to give you the best, most relevant experience.

Underworks Ultimate Binder

Colour: White

The Ultimate chest binder is a full-length binder that hits at about the hip or lower on most people. It provides chest and mid-section compression using two reinforced powernet panels throughout the front, and a single layer in back. Your binder will stretch out a bit over time, be sure to follow the sizing guide for best fit.

Thank you. Your notification has been registered.

A valid email address is required.

Shipping Info

CANADA Order Shipping cost
Expedited Shippingunder $99$7
Expedited Shippingover $99FREE
USA Order Shipping cost
Expedited Shippingunder $150$30 CAD
Expedited Shippingover $150FREE
Ottawa/Gatineau Order Shipping cost
Same-Day Shippingany$15
More shipping info


Material 70% nylon and 30% spandex knit
Colour Black or White
Made In USA

Care Instructions

Wash in cold water on the gentle cycle. Hang or lay flat to dry, do not put in the dryer. Do not bleach or iron.

More Info

The Ultimate Binder fits about one size larger and is slightly less compressing than the Tri-Top. For example, if you take XL in the Tri-top your size will most likely be Large for this binder.

To find your size, take a snug measurement around your ribcage with a measuring tape. Next, take another measurement over the fullest part of your chest. Take the average of these two measurements and apply the result to the scale provided below. Make sure to keep the measuring tape snug, and parallel to the floor to get the best measurement. Your binder will stretch out a bit; be sure to follow the sizing guide for best fit.

Please note the Ultimate Binder can be quite warm to wear, a half-length binder may be more comfortable in summer months.



29"- 31"
Medium 35"-39"
Large 40"-44"
45"- 48"
49"- 52"
3X 53"- 56"
4X 56" - 59"

The Ultimate Chest Binder is 24"-28"long, depending on the size you order.

Customer Reviews

Based on 5 reviews
First Binder

I like this binder. My chest is really big and this honestly does a pretty good job. I am a 32H or maybe even bigger. I honestly stopped caring after G. I still have a bit of chest with this binder and as it has stretched out, the uni-boob and slippage has happened, but I think I actually needed a smaller size. Also, with the size of chest I have, this is not really the binder's fault. They had a different sizing chart in-store and the fit was okay but not as tight as I expected. But it has been super safe to wear and has been a good intro to binding! Plus, the customer service is so so amazing. I was so scared and they made me feel great.

Binder wise, this one is solid. I modified it by folding it up and stitching it down which gave me a bit more compression (only safe because of the sizing thing! Be careful, peeps!) and I like the fit a lot better. I have big hips and a teeny waist, so this one rolled up so so so insufferable without the modification. But yeah, this is a good choice overall!


Getting my binders, all wrapped up in sparkly tissue paper, made me feel like the Magical Spirits of Genuine Self Expression were sending me a midwinter gift of exactly the armor I need. Thank you!

Oh yay! Hands-down, one of the best reviews we've ever received :)


He said that it is very comfortable and doesn't make him any hotter. And we would like to thank you for the quick delivery and the quality of the binders.

Best Customer Service

I have never ordered from Venus Envy before the other day, and I had a few problems and everytime I did they went out of their way to help me. The problems had nothing to do with the store but they were problems that I made happen. The product shipped really fast, and it was perfect. I very happy and can't wait to order again!

Thanks so much, we're so glad so hear this! :)

First binder!

This binder is very long. I took a medium. I found it hard to breathe and that it eliminated my stomach as well as my chest. I only want my chest gone, the stomach reduction has to come naturally! Ha ha. Anyways, I cut off the bottom. The material doesn't fray or roll up (well, usually) and it makes it a cooler wear in the summer. I love my binder and i NEVER leave the house without it! I love how masculine my chest (a small B) looks in it. FTM transitioning safe and great for gender play!