Knitted Hat Reflective Trim B023. This high-performance hat has a specially insulated microfibre lining for extra warmth retention. Composed of fine knit acrylic fabric it is windproof and extremely comfortable to wear. This hat features a silver reflective stripe for enhanced visibility. Acrylic knitted beanie hat. Insulated with Insulatex lining. Windproof and extremely comfortable for wearer. Reflective trim for visibility.