This Adidas Swim Briefs is guaranteed authentic. Its crafted with 100% Polyester. Competitive swim brief from known adidas brand. Adidas Logo on the side. Adidas Shock Energy Brief Swimsuit, all-over shock print, to be bold! Front panel liner, elastic band with interior drawstring for a secure fit, Side Seam approx.: 3-1/4 inches. Hand wash cold. Get you style on this summer and show off that shape. Run Smaller for Swimwear bodies, recommend 1 or 2 sizes for standard US sizing.