On Running Lightweight Cap delivers featherlight, ventilated protection for active days. The cap pairs a soft sweatband with laser-cut ventilation for fast-drying comfort and an adjustable fit. Key attributes: Green | Polyester | Lightweight | Fast-drying | Ventilated | Weather protection | Adjustable back fastening | Soft sweatband | Reflective back panel logo | Easy touch-and-close fastening | Curved brim | Laser-cut perforation for ventilation | Topline stitching | Dimensions & fit: Weight: 47g | Head circumference: 20.1–21.3 in | One size, adjustable | Composition & care: Main fabric: 100% Polyester | Sweatband: Polyamide 45%, Polyamide 23%, Polyester 22%, Elastane 7% | Warm hand wash. Do not bleach. Do not tumble dry. Do not dry clean. Cool iron.