In the past few months, we have covered plenty of cool wearables for humans. Tail Lights happens to be a wearable system for horses. It is designed to keep them and riders visible at night. Tail Lights Pro is customizable and can be installed easily. These are rugged and have built-in SOS features.
The battery life lasts over 23.5 hours. You get multiple colors and patterns to choose from. The above video shows Tail Lights Pro in action.