The RJ Classics Sienna Training Shirt offers a classic, yet sporty technical top that is suitable for everyday schooling. Features patented thermoregulation technology to help your body manage its core temperature and increase stamina. Helps to keep you comfortable by helping your body to maintain an optimum core temperature of 37.5° Celsius (99.5° Fahrenheit), the ideal for peak athletic performance. Complete with a quarter zip design in a contrasting colour.

• 37.5 thermoregulation technology
• Main body fabric has UPF 50 sun protection
• Tonal mesh underarm panels