This is a Lululemon C.Y.B Ink Navy Tank Top in size 10 for women. The sleeveless tank features an open back design, ideal for activewear and athleisure. It is designed in a stylish athletic fit, perfect for gym and outdoor activities. The color is blue, and the brand is Lululemon. The tank top is themed around cross, outdoor, sports, and modern styles, with a compression area focused on the back.