- Lightweight, fast-drying performance-ready COOLwick™ fabric and repreve recycled performance fibre. – UPF 40 protection on the brim, front panel and back panel. – Machine washable. – Pliable SOFTcurve pre curved brim for easy packability. – Reflective detailing on the front, back and underbrim for night run visibility. – Ciele athletics™ million miles guarantee. – 5 panel fit. 58 cm. adjustable. one size fits most. see size guide. – Weight 62 grams. – Designed for people who run.