TREFOIL WARM-UP HOODIE A COTTON FRENCH TERRY HOODIE WITH A CONTRAST RUBBER-PRINT TREFOIL LOGO. This hoodie broadcasts adidas pride with a bold Trefoil logo graphic on the chest. It's made of ultrasoft French terry, and features hidden pockets and a crossover neckline. The Adicolor collection Inspired by adidas heritage, Adicolor is authentic but modern Iconic Trefoil style The Trefoil logo has been making its mark since 1972