The Proviz classic running cap has been designed to be the perfect running cap. It's lightweight, sweat wicking material allows the cap to fit to your head shape giving you the best fit possible. The material is highly breathable and has extra vents on the side to keep you cool._We have incorporated our Reflect360 trim around the peak, sides and back of the cap so if you are out at night or in low light conditions, light projected from vehicles will enable you to me more easily seen._Classic running cap - key featuresMade from lightweight, form-fitting materialIncorporates reflect360 reflective material on the peak, sides and rear of the capMeshed fabric for enhanced breathabilityAdjustable size range (to fit up to 64cm)Multi-panel design for enhanced fit100% polyester