This is an oversized polo shirt!! It's white, so it should be easy to match with other clothes ^^ The lines appear when you fold up the sleeves, which is cute! By the way, there are also lines on the back of the collar! For those who want to wear it loose and comfortable, this is for you〜(^^) Material: 100% Cotton Size: Width: Approximately 62cm Length: Approximately 83cm Sleeve Length: Approximately 28cm (Measurements are approximate. Please understand.)