GOGO High Visibility Reflective Safety Vest, Mesh Safety Vest-BLUEYELLOW-M Made of polyester and reflective PVC. Reflectivity vest enhances visibility and safety at night. Adjustable self-locking on waist for comfortable fit; mesh design for easy breath. Essential safety equipment for walkers, motorcycle, running/jogging, bike/bicycle riding, utility repair, law enforcement, parking attendants, construction worker, surveyor, traffic crossing guard, police, EMS, Security. Our size is not standard US Size. Please check product\'s SIZE INFO to make sure the item fits your measurements before purchase.