Amazon!

noxgear LightHound – Revolutionary Illuminated and Reflective Harness for Dogs Including Multicolored LED Fiber Optics (USB Rechargeable, Adjustable, Lightweight, Rainproof) https://www.amazon.com/dp/B014RP7YRA/ref=cm_sw_r_cp_api_i_FhgOFbGPSZG60?_encoding=UTF8&psc=1