The Venum Authentic Fight Week 2.0 Compression T-shirt was designed to meet the needs of high-level athletes and fighters. A compression garment engineered to provide perfectly applied pressure across the surface of the skin to help reduce recovery time. This rashguard matches the compression pants from the same collection, the range worn by UFC fighters the week before their fights! The Rahsguard size small. We recommend choosing one size up for a "fitted" fit or two sizes up for a looser fit.