Briefing open Wide 50mm black elastic waistband Tonal logo threaded in black chrome Black wide-knit cut lined with cotton Full cotton back with lifting elastics Our PUMP briefs! Switch SideCut Brief features an open-side brief design that provides wide-open comfort with its wide 50mm black elastic waistband with tonal threaded chrome black logo, wide black cotton-lined woven mesh cup, and an all-cotton back with lifting elastics for maximum comfort cotton 63% - nylon 31% - elastane 6%.