Opt for smooth lines with the minimal seaming of these superstretchy and lightweight microfiber briefs. Cotton-lined gusset 75% CiCLO nylon, ROICA™ spandex Fibers made with CiCLO show enhanced rates of biodegradation vs. traditional synthetic fibers, reducing plastic microfiber pollution in seawater, wastewater treatment plants and landfills. CiCLO additive creates millions of biodegradable spots in the matrix of the plastic, where naturally occurring microbes can break down the materials as they do with natural fibers Machine wash, tumble dry Imported