KingGee Workcool does what it says - keeps you cool while you're working. Lightweight breathable fabric Two secure chest pockets with pen partition Underarm, upper back and side cooling vents 3 piece collar with extensions for added sun protection Materials: Cotton Ripstop 145gsm Features: Airflow - Engineered ventilation placed in high heat zones to allow air to flow through to the body, improving breathability and keeping the wearer cool and comfortable. Ripstop Fabric - Ripstop fabrics have been woven to be highly tear and rip resistant. UPF Rating - An Ultraviolet Protection Factor (UPF) rating for Ultraviolet Radiation transmitted through a fabric onto the skin. Look for garments with a UPF 50+ rating to be assured of excellent protection. These garments have been designed to comply with AS/NZS 4399:1996.