The rashguard is made of 88% polyester and 12% spandex. The weight of the fabric is 210 gsm (gram per square meter). Sublimation printing technology is used to ensure that the print won’t crack or come off. New cut. Composition: 88% polyester and 12% spandex. Material weight: 210 gsm. Print technology: Sublimation. Please read size guide and washing instructions below. If you have any questions, please contact customer service . Also read the Rebelz Ultimate No-Gi Guide for advice and tips.