The Trefoil has become more than just a recognisable icon. It has been worn by our favourite athletes, musicians and artists. It stands for style and comfort even down to the socks. The adidas Trefoil Cushion Crew Socks come with six pairs per pack to make sure you stay fresh for the week. A minimum of 50% of this product is a blend of recycled and renewable materials. Crew length. 65% cotton, 31% recycled polyester, 3% elastane, 1% recycled nylon. Six pairs per pack.