Blackrock Yellow Beanie Hat, Wear with Hi-Vis, for Men and Women, Running, Beanie, Winter, Lightweight, Skull Caps, Thermal, Winter Work Hat

• IDEAL FOR: Thermal beanie hat that keeps your head warm in cold weather - ideal for running, jogging, walking, and cycling, as well as skiing, snowboarding, and other winter sports
• HEAT RETENTION TECHNOLOGY: High-density acrylic fabric seals in layers of warm air and keeps them circulating close to your head, retaining heat and keeping you warmer for longer
• COMFORT: Brushed fleece lining for extra comfort against skin
• SIZING: One size fits all thanks to the gentle stretch built into the fabric that ensures a close yet comfortable fit, whatever your head size and shape

Description Thinsulate technology is engineered to give you the ultimate in heat insulation. The high density fabrics trap a layer of warm air close to your skin, reducing heat loss and keeping you warmer for longer - essential on chilly days and particularly when working outisde.