Heat Holders Hi-Vis Hats: Heat Holders creators always seem to come up with innovative ideas to keep us warm no matter what. Here is an example, combining their improved version of the original heat weaver thermal lining technology and the classic reflective hi-vis that workers and cyclists alike definitely need on those cold and dark winter nights. The Heat Holders / Workforce collaboration allows this synergy of knitting technologies to become relevant to working and outdoor s. The turnover hats boast a 4.7 tog rating, higher than the original Heat Holders mens turnover hat and much warmer than your standard acrylic hat. . Heat Holders hi-vis hats come in 3 colours including bright orange, bright yellow and black. The two lines that strike on the turnover section of the hat are reflective bands that allow light to bounce off for higher visibility in the dark. Our hats are available in one size and are 89% acrylic and 11% polyester on their outer and 100% polyester inside. Extra Product Details: Hi vis thermal hats, Heat Holders / Workforce collaboration, 4.7 tog rating, Heat weaver lining, 3 colours to choose between, Reflective stripes, Outer 89% acrylic 11% polyester Inner 100% polyester Machine washable Heat Holders Men's Hi Vis Reflective Soft Fleece Lined Thermal Winter Hat in Black