The RunTechnology hat is designed for maximum comfort and performance for athletic wear. Each proprietary fabric in this hat is strategically placed to maximize fit and performance. The moisture-wicking air flow vented fabric at the sides keeps the head dry and comfortable. The highly reflective corner panel provides an essential safety feature. RunTechnology's comfort stretch moisture-wicking polyester keeps the hat contoured to the head with an ultra-lightweight comfortable fit. This hat is designed for athletes that expect the best in fit, comfort, and performance.