Black Unisex Adult Snap Bodysuit

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This Snapsuit with an all-black design looks just like an ordinary T-shirt, but provides full, discreet coverage and noise reduction. It’s perfect for providing support and holding everything in place!


This comfortable Snapsuit is made with cotton/spandex giving it a great stretchy feel while keeping it as soft as cotton. 


Our Snapsuits give a tight, discreet fit while helping smooth lines and holding diapers/pads in place without the fear of shifting or sagging. Features a metal snap crotch with 4 snaps.


Fits similar to a standard female T-shirt sizing (size up one size if you are used to male sizing). This Snapsuit can stretch up to a few inches longer than listed below and can shrink up to 15% after washing.


Size Chart
Size Chest Length
XS 28" 26"
Small 30" 28.5"
Medium 34" 32"
Large 36" 34.5"
XL 42" 36.5"
2XL 45" 38.75"
3XL 50" 40.75"
4XL 57 44.5"


Made with 95% cotton and 5% spandex

30 Reviews Hide Reviews Show Reviews

  • 4

    Posted by Jim Coeling on 2022 May 21st

    I ordered a medium size but it’s a little small. I would order a size up if you want it to fit.

  • 5
    Black Onesie Best In Class

    Posted by Jeff on 2022 May 13th

    This is a great product. I find both the sizing information perfectly accurate and the fit and durability of the product satisfactory. If I had one suggestion it would be to make the area where the snaps are a little thicker as this is where the t-shirt wear and tear creates small holes near the snaps rendering the product less effective. From what I've found in the market this is a top line product.

  • 5
    Very good basic snapsuit!

    Posted by Gavin on 2022 Apr 20th

    It's a very nice snapsuit. It does exactly what it's designed to and holds the diaper properly in place. A few issues though, mainly with it being cotton, is that it shrinks basically a whole size when washed, so order a size up, and it picks up animal fur and other fuzzy bits like no tomorrow. This doesn't take away from the comfort of the item all that much though, so I'm still giving it the full five stars!

  • 5

    Posted by Greg M on 2021 Dec 28th

    I was looking for something to wear to hold up my diapers after they are wet. This snapsuit is perfect. Nice comfortable fit with soft fabric. The snaps are sturdy and hold very well. will be buying more.

  • 5

    Posted by Jason on 2021 Dec 26th

    I love this onesie, fit is really nice and the snaps are flapped the right way.

  • 5
    Love it!

    Posted by PJMasks1138 on 2021 Dec 24th

    Fits great and keeps even my wettest diapers in place.

  • 5
    Black Adult Snapsuit

    Posted by Jay on 2021 Dec 19th

    If you wear diapers during your waking hours, particularly away from home, then you might not know it yet, but, you need several of these in your wardrobe. They are a game-changer. Wear diapers with confidence, no concerns about waistline reveals, minimized sagging, and if you have a tab failure, it's not a big deal. Rearz has a great selection and great pricing.

  • 5
    Im loving it!

    Posted by Zach on 2021 Nov 16th

    I love my black onesie I am will most likely be buying more soon!

  • 5
    Adult snapsuit

    Posted by Jack C. on 2021 Sep 3rd

    Quality material, plenty of stretch. There is a bit of shrinkage so I advise ordering one size up. I normally am on small side of medium and ordered a large and I love the fit. So far it appears to be color fast as I got the black. I will be getting more in the future.