Thank you for viewing! This is a men's running support half-type. It will tighten and support your muscles to prevent them from shaking during the upcoming winter and cold weather. Reflective material is also attached on the back. There is no drawstring to tighten the waist. It seems it didn't slip down even without it. Inseam is approximately 23 cm. We will ship it immediately via post, anonymously. Thank you.