Manshape&reg; MagiCotton Gynecomastia Compression V-Neck T-shirt MagiCotton fabric 32% spandex and 22% nylon wrapped with 46% pure cotton Made in USA Sizes: Measure Chest: Small 32-35 / Medium 36-39 / Large 40-43 / X-large 44-47 / 2X 47-51 / 3X 52-55 Unique High Quality Proprietary MagiCotton Fabric offering very firm compression and the feel of cotton Provides Chest and Tummy Compression, back support and helps your posture and circulation Controls Gynecomastia by firming up the chest and giving you a masculine look MADE IN THE USA by Manshape. To show our commitment to quality, your Manshape MagiCotton Gynecomastia Compression V-Neck T-shirt 985 includes a manufacturer's warranty that covers defects. This warranty is non-transferrable and only valid to the original buyer for purchases made directly from Underworks when purchased on Amazon.