On | Unisex Lightweight Cap - White Size:One Size we recommend using the sizing

we recommend using the sizing chart

Winter running features are combined with the injury reduction potential of True Motion's U-TECH™ technology

We also suggest using these for hot weather runs

Fibre content of waistband: 89% polyester

On | Unisex Lightweight Cap - White Size:One Size we recommend using the sizingThe On Unisex Lightweight cap has a new and improved fit for even more comfort. Perforated side panels offer maximum ventilation. While a high performance sweatband wicks sweat quickly. Helping you stay dry and comfortable. A branded buckle closure makes it easy to adjust. Finally, the reflective On logo on the front panel creates a bold visual. Technical Features Approximate weight: 58 grams Improved fit for easy going comfort Curved brim Main body