Ergonomically designed specifically for Cricket, all Kookaburra Cricket Helmets have been designed & developed to comply with the new BS7928:2013 Standard as well as continuing to meet Australian Protective Standards. The Kookaburra Pro 600 cricket helmet is a new, ergonomically designed and lightweight cricket helmet featuring a custom size adjustment dial and reinforced steel guard. Colours: Navy Sizes: Senior (58-62cm), Junior (56-58cm), Mini (54-56cm) AIRFLOW VENTING Airfl ow vents in both the outer shell and interior lining combine with strategically positioned interior fl ow channels that wick sweat and heat away from the player, allowing them to focus on the game and perform at their peak.