All styles are available in stock and can be shipped on the same day as the order is placed, except for special circumstances during holidays If you are not sure about the size, you can refer to the size chart. All underwear is made of pure cotton material, please rest assured to purchase Size reference: S size: suitable for waist circumference of 56-72cm and weight of 40-45kg M size: suitable for waist circumference of 60-76cm and weight of 50-55kg L size: suitable for waist circumference of 64-80cm and weight of 55-60kg XL size: suitable for waist circumference of 68-84cm and weight of 65-70kg Material: 95% cotton+5% spandex Style: sporty, minimalist, sexy, cute Packaging: independent packaging Function: Breathing, traceless, breathable, fashionable, comfortable Washing instructions: If new underwear has a mechanical odor, it is recommended to soak it in cold salt water or use specialized underwear soap to remove odor and fix color. It is strictly prohibited to use abnormal methods such as boiling and ironing at temperatures above 30 degrees Celsius