66%Polyester 34%Elastane For size selection, please refer to the corresponding picture size chart. The front of the sports bra is designed in one piece according to the chest structure. Your back have more gripping force with crisscross back design,display your back curve and figure. You can get good tensile recovery with high elastic soft fabric.Yvette used super soft and breathable fabric, very comfortable and moisture-wicking, dry quickly, keep you at best performance when doing sports. Perfect bra for yoga,exercise,fitness,any type of workout,or everyday use.Yvette Yoga bra combine fashion,function and performance ??100% Service??We provide and to fully honor the 30-day-full-Money-back service. If there is any problem please feel free to contact us via E-mail immediately, we will professionally tackle the issue for you with 100% passion. Your fitness and happy are the best encourage and reward to us. Discover more sports bra for women: www.amazon.com/yvette.