- Lightweight, fast drying performance ready COOLmaticª mesh top + side back panels - AIRmesh front panel for structure and ultimate breathability.- Pliable brim and front panel for easy packability.- Reflective detailing on the front and back for night run visibility.- Ciele Athleticsª Million Miles Guarantee.- Machine Washable- 5 panel fit. 58 cm. Adjustable. One size fits most. See size guide.- Weight 55 Grams- Designed for men and women who run.