men's knitted cotton underwear based on unique technics, bring you unprecedently soft, comfortable feeling! men's knitted cotton underwearbased on unique technics, bring you ... 15% tencel, 15% bamboo, 30% rayon, 30% combed cotton and 10%acrylic.2. specification:17-21 inch3. colours: all ... advantages: seamless, invisible, absorbent, breathable, colourful and fashionable. men's knitted cotton underwear