Show your support for the Blues in training and complete your kit in these Cardiff Blues 18/19 Alternate Rugby Socks from Macron. Guinness Pro 14’s Cardiff Blues are one of only four professional Welsh regional rugby teams. They have now collaborated with Macron for their 2018/19 kit and training attire. These socks match the alternate shirt as they are white and feature navy and sky blue stripes. They also feature the club crest in between the two hoops with the Macron logo in the same place on the back of the sock.