The Underworks Cotton Concealer Muscle Shirt Chest Binder features a fitted, soft-to-the-skin cotton spandex knit that stretches and recoils as your body moves. On the inside are powerful layers of nylon spandex knit binding your chest, flattening your belly and pressing against your back in support. Some find this to be a good choice for workout wear. Made in the U.S.A.

Style number 974. We have decided to give names to the different Underworks binders here in our store to help our customers tell them apart. We call style 974 "John Henry."

White. Comes in 5 sizes: XS thru XL. Sizing, care, and measurement recommendations below.

How to measure
First take a snug measurement under the breast line with a tape measure-- lift your breast tissue up and place tape underneath if necessary (this is a measurement of your rib cage). Next take another measurement over the fullest part of your chest. You might want to wear a sports bra when you do this. Again not too tight but not too loose. Take the average of theses two measurements and apply the result to the sizing recommendation provided below.

Between sizes? Unless you've already tried an Underworks binder and know your size, probably opting for the larger size will be better-- you want to be able to put the binder on and breathe!

Each Underworks item has a different scale based on the elasticity of the fabric used and the cut of the garment, so please pay attention to the sizing scale for each style.

XS: 28" to 31"
Small: 32" to 35"
Medium: 36" to 39"
Large: 40" to 43"
XL: 44" to 47"

Care For Your Binders: Hand wash or machine wash your binders ONLY in cold water. Use gentle cycle when machine washing. DO NOT iron. Do not place the garment near any kind of heat source. DO NOT use any kind of bleach. Drip dry or flat dry, DO NOT place your binder in the dryer.

How To Put On Your Binder: This style binder is slipped on just like a pullover or a t-shirt.