C-IN2 Men's Zen Sport Brief, Rain Heather, Medium 59% Cotton, 39% Rayon, 2% Elastane Imported Machine Wash 59 percent cotton, 39 percent modal, 2 percent spandex He zen collection resulted from a culmination of intricate design and planning utilizing the very best in environmentally conscious natural materials The microfiber waistband and leg bindings are custom tailored to provide perfect tension levels to ensure that the underwear stays in place Made in Thailand