HEAD BOYS CLUB TECH BOYS Tennis POLO Shirt : Dark Blue – Designed in a classic navy and white combination. The shirt is made using elastic material, ensuring a good and comfortable, crew-neck fit. Because of the functional polyester material, the shirt is very firm, but supple, and feels dry throughout the training session. The shirt also protects against UV rays with a UPF of 30+. In short: this is the perfect shirt for sports in summer, both outdoors and indoors.