WHAT DOES OVERsize MEAN? 1 X =XXXX LARGE(4XL) 2 X = XXXXX LARGE(5XL) 3 Cotton fabric (cotton fabric) - a natural fiber used in versatile fabrics. Cotton fabrics are commonly worn in hot climates – because they keep you cool. The best quality cotton, such as Egyptian and Sea Island cotton, is obtained from long, thin and shiny threads. It has a feature that does not show through when worn. Elastane (Lycra) Fabric Lycra (Lycra) - is the trade name of spandex (elastane) fiber. Fiber types with high elongation ability are classified as elastomer (elastic) fibers, and in our country these fibers are commonly known as lycra. It is produced from materials suitable for human health. It is our own production with the brand FSM1453. Our product does not irritate or itch the skin. Light fabric allows you to move freely. It is suitable for daily use. Use it in good times. This product will be sent by FSM1453.