Two Amazon Essentials Size Medium Women's Tech Fitness Tank Tops. The bundle includes one white and one black tank top, both featuring a comfortable racerback style. Each tank top has been worn and washed just once, and is in excellent condition. The material is a moisture-wicking blend of 96% polyester and 4% elastane, making it perfect for any fitness activity. The tank tops come from a smoke-free environment. The measurements of each tank top are 17" across the flat front of the chest and 27" in length from the top of the shoulder to the bottom hem.