RJC Ruby 37.5 Sleeveless Training Shirt Size:XS This helmet is ASTM/SEI approved

This helmet is ASTM/SEI approved

Intended for daily grooming all year long

Also deeply conditions and restores saturated

Features three D-rings for easy attachment of training aids

The interchangeable button design (additional silver buttons included) allows for an alternate look

RJC Ruby 37.5 Sleeveless Training Shirt Size:XS This helmet is ASTM/SEI approvedThe Ruby is the perfect choice for the warmest of days because of its sleeveless styling and its 37. 5 technology. This patented thermoregulation technology has proven to help your body manage its core temperature and therefore, increase stamina. It keeps you comfortable by helping your body to maintain an optimum core temperature of 37. 5 Celsius (99. 5 Fahrenheit) which is ideal for peak athletic performance. The particles are naturally derived and