Hy HyVIZ Equestrian Reflector Hat Cover Yellow. Be safe â€\\\" be seen with the HyVIZ Equestrian Reflector Hat Cover from Hy. Seen as one of the most important gear of your hi-vis collection, the Equestrian Reflector Hat Cover ensures you are seen over the top of walls and hedges â€\\\" giving drivers that extra chance to spot you and slow down in time. Made with a fluorescent yellow Lycra material, the Equestrian Reflector Hat Cover consists of 6 panels that perfectly slides over the top of your riding hat. With reflective panels on the sides to increase visibility in low light, the Equestrian Reflector Hat Cover is finished off with a elastic trim and a button top.