Pattern Design: Check Material Composition: 100% Cotton About this product Size: L [Material Composition]: 100% cotton; This trunk is made of cotton, which has a soft and natural feel, and is also breathable. [Open front design, with button] The open front design makes it more convenient. Also, the fly has a button, making it a very secure trunk. [Stretchy waistband] The elastic belt has excellent elasticity and a comfortable feel, allowing you to wear men's underwear without stress. Especially around the waist, it doesn't feel too tight, and the elastic doesn't leave marks. Please refrain from purchasing if you are concerned about the fine details. *Regarding the colors in the photos, please note that the subject may appear different from the actual color due to the shooting environment and viewing environment.