Each product has its own unique size guide located on the product page. We cannot guarantee at 100% that the size will work for you however we do have a 95% accuracy when using our size guides.
Please Note
Due to the nature of the materials we use, our sizes may not match your typical sizes. It is important to input the most accurate information. Our size chart is based on average sizes for height and weight. The Define Bands run small so the size given may not be the size you expect.
Still Not Sure?
If your weight is towards the end of the weight range, choose the next weight range up.
Use the size chart to find the best size based on your height and weight. It is important that you use your current body weight.
If you are still not sure if the size the product size guide is giving you is correct, please read the following articles for differing body types. 
Instructions for Putting On Your Define Band
Step 1
Wrap the band around your waist at the smallest part of your midsection, generally around your belly button area.
Bring the two ends together and ensure the zipper is connected properly before you start zipping.
Step 2
Once the band is around your belly button, connect the two sides and begin to pull the zipper up.
Pull the bottom of the band down after zipper is all the way up.
Step 3
Secure the velcro straps after zipping. Do not overly tighten straps.
The straps should be left undone and open, or removed, when doing abdominal exercises.
We have a 30 day exchange policy if you have sizing issues.
Buy It With
What Waist Has Been Featured On
Celebrity Favorites
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- waist trainer
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United StatesOkay
I did leave a bad review but that’s because I honestly thought that they scammed me but it was a mess up on USPS so I wanted to give an honest review because I can’t find my other comment to delete. I followed their sizing and got what they recommended. It fit nice and I like the way it fits my stomach ( I have a long torso) it’s nice and I loved the look. I just don’t like the zip part and that it does not have any clasps or hooks to help it be more secure. I was in an important meeting with a lot of our partners and it came unzipped and got stuck on my tummy skin. It kept randomly unzipping throughout the day. Overall I liked the fit and its support, but it has a horrible design when it comes to the closure (I don’t know how to say I hate the zipper with no other clasps or hooks.
What Waist
Thank you so much for your honest review.
United StatesGreat quality! Sure to melt the fat!
This waist trainer is everything I expected it to be. The quality is top notch and you will be sure to sweat. I was looking for a sweat belt that also cinched the waist I made the perfect decision going for this item. It was a little small because I went down a size instead of getting the recommended size. I hold more weight in my stomach area so What waist size chart is spot on. Be sure to get the recommended size from their size chart and you will not regret it. I have tried many different companies spending thousands of dollars on shape wear but What Waist by far has the best quality items.
What Waist
Thank you so much for your honest review. We are happy that you are enjoying the product:)
United StatesGood results
Back in 2020 I took it upon myself to loose weight not much but I knew stomach fat was hardest to kick so I walked hills with this on in the summer and let it sweat out! Didn’t run really just lunges and a good walking pace. Came off and has stayed off since those 6 months! Love the brand will get more once I find the…❤️❤️
What Waist
Thank you so much for your honest review. We are happy that you are enjoying the product:)
United StatesGreat
Haven't been able to use it because my daughter snatched it and is using it. She loves it! I'm ordering another one but that one will be for me.
What Waist
Thank you so much for your honest review. We are happy that you are enjoying the product:)
United StatesBlack double vapor
I order a size medium it was too small couldn’t zip it up all the way. I am 5’3 in height and weight 150 pounds and have a small wasit and no fat around stomach area just a little bloated. So I will say definitely follow the size guide it’s true to size. Had to return and getting a size Xl :)
What Waist
Thank you so much for your honest review.
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