Seamless Mesh Brief, seaamless microfiber mesh fabric, stretch to fit. See through mesh holes. Very sexy men's underwear! 93% Polyamide, 7% elastane. Mesh fabric is see through (be careful, as with all mesh microfiber the fabric mesh may tear if he pulls his fingers through it). By NDS WEAR ® Two sizes, Small/Medium fits 27" through 33", Large/XL fits 34" through 39"