Adidas trefoil logo Posted on June 24, 2015 by admin Adidas trefoil logo Sign - Symbol - Watermark - Trademark - Company logo. The below image is of the Adidas trefoil logo showing the sign by itself or the logo including the brand name of the relevant organization. Adidas trefoil logo Tags: adidas trefoil, adidas trefoil brand, adidas trefoil logo, adidas trefoil logos, adidas trefoil sign, adidas trefoil symbol, adidas trefoil trademark