MATERIAL: Highly reflective strips, and lightweight, comfortable polyester knitted fabric. Zipper closure for quick on and off, easy and convenient. Please check the size chart carefully before ordering. MULTI-FUNCTIONAL POCKETS: 5 pockets for multiple use-1 PVC pocket for ID card, 1 for pens, 1 for cell phone and 2 large versatile pockets. One mic tab in the upper left, and one loop which is convenient to hang tools. 360 HIGH VISIBILITY: Two 2''-wide vertical reflective strips and two horizontal ones around your waist provide you with 360-degree high visibility. The reflector vest enables you to be seen during the day and at night in a variety of environments, helping ensure your safety. WIDE APPLICATION: Whether you are a municipal worker, construction worker, forester, contractor, surveyor, engineer, warehouse worker, truck driver, parking lot attendant or crossing safety guard, this reflective vest can greatly reduce risks of being involved in an accident. Also very useful when you're cycling, hiking, walking, jogging, walking your dog, etc. This hi-vis vest can meet your needs year-round (wear it over other clothes when it's cold). FULL COMPLIANCE WITH ANSI/ISEA 107-2015 Class 2: Shorfune High Visibility Safety Vest meets the ANSI and ISEA standards that outline performance specifications