Senchanting Zip Front Racerback Padded Wirefree Push up Impact Yoga Sports Bra Zipper closure Material:Nylon+Spandex.Secure front-opening zip for easy on and off,wide inner panel underneath the zip to prevent skin contact and chafing. High quality sweatproof spandex material with little mesh holes for breathing;Professional sports bra for exercising and body building lover Great permeability,soft feeling with excellent elasticity,comfortable wearing and easy washing/Ideal for everyday active lifestyle like Sports,Gym Exercise & Fitness,Yoga,Walking & Jogging & Running,Cycling,Boxing,Bowling,Tenis,etc. Active workout racerback seamless sports bra &tight fitting for support / Medium Support and Elastic Closure/Super comfort and super soft fabric / Moisture wicking and perfect for any type of Physical Activity. The design is a basic sports bra from the front, with a zipper that allows for quick removal of the bra. On the back it is more of a racer back style with an X-shaped strap that is connected in the middle by a stretchy mesh material. The material is mostly polyester with a small amount of spandex so it is very stretchy and allows for full movement while wearing it. If you are like to run or go to the gym, this would be a perfect top because of how comfortable and supportive it is.