With a single layer of MagiCotton, your Gynecomastia Tank Top works wonderfully in flattening your chest and tummy while providing your back with support and improving your posture. From the Core fibers of 32% spandex and 22% nylon wrapped with 46% pure cotton, this fabric stretches four ways, providing you with the best fit and compression in total comfort. The compression is focused only in the chest area.  The mid-section is relaxed and filled with 100% combed cotton so you only feel the compression where you need it. An amazing level of compression with the feel of cotton and in a single layer of fabric. Made in the USA by Manshape.