Insta Slim - Made in USA - 3 Pack - Compression Muscle Tank Top Body Shaper for Men. Tummy Control Slimming Shapewear Undershirt for Gynecomastia, Beer Belly & Back Support (Black, XL)Brand: Insta Slim Color: Black Features: Features: 4 Way Stretch provides great mobility without the feeling of total restriction. The fabric helps assist in keeping odor off and allows for longer life of the garment. Material: Special blend of 72% nylon and 28% spandex that's both breathable and durable for long uses. The fabric blend makes the feel of the garment ultra soft. The blended fabric is smooth and is discreet while under clothing. Durable: