KOOLGEAR HI-VIS 2 TONE VENTED LONG SLEEVE SHIRTDescription Koolgear is Hard Yakka's range of lightweight, ventilated shirts, pants and shorts engineered to keep you cool in hot, physically demanding environments. Vented back yoke & shoulders Underarm cotton mesh vents Two button down chest pockets Pen partition in left pocket Cool Flow Engineered ventilation placed in high heat Engineered ventilation placed in high heat zones to allow air to flow through to the body, improving breathability and