Marca west Mens Antibiosis Underwear Shorts Briefs Boxer Trunks Underpants Middle-Riseplease refer to the second picture(size chart) to select your size.all dimensions are tile sizeso 2 times are the actual sizes. Material:95%modal+5%spandex Breathability,Environmental ,not easy to cause deformation. Not easy pilling,soft and comfortable,excellent Expansibility,anti-microbial If you have any questions,feel free to contact us ,we will try our best to make you satisfied,wishes your shopping happily.