David Archy's scrotum separation type briefs. They separate and store the penis and scrotum, reducing stuffiness. Surprisingly easy to wear, and both the elastic and the fit are good, making these briefs the seller's recommendation. The flat-lay waist width is about 44cm, the rise is about 26cm, the leg opening is about 24cm, the waist-to-rise width is about 16cm, and the belt width is about 3cm. Made of 92% micro modal and 8% polyurethane. Micro modal is a soft, breathable material made from beech tree pulp. Although it's a synthetic fiber, it has a silky smoothness and luster, and is characterized by its excellent moisture absorption and release. Please forgive minor imperfections as this is a Chinese product. Free shipping via Rakuraku Mercari Bin [anonymous delivery, Yamato Transport Nekopos]. If you prefer Yu-Yu Mercari Bin from the post office, you need to switch the check box in advance, so please contact us in the comments section if you wish to do so or if you have any other questions.