Buckle closure ✔HIGHLY VISIBLE & SAFE – Excellent 360 Degree reflective bands keep you safe in all weather conditions(rain, fog, dark) at day or night. Super reflective running gear can be seen from 800 feet or more.Your family at home can relax, knowing you are wearing high performance reflective gear and are so much safer. ✔ELASTIC & ADJUSTABLE – Reflective safety vest shoulder to waist expands from 13" to 21", waist circumference expands from 27" to 40"; You can freely adjust the size of the reflective vest, allowing you to move freely.Our reflective bands are perfect for any age and gender! ✔HIGH QUALITY – Reflective bands are made of a top quality Nylon fabric and super-bright reflective silver stripes with a belt buckle and strap adjusters made of strong ,hard plastic which will withstand a lifetime of repeated use. ✔COMFORTABLE AND LIGHTWEIGHT – Unlike vests, these straps are more comfy.Fully adjustable and breathable design allows for a full range of motion. It is also super lightweight easy to carry. Fits over any clothing in any season. ✔UNLIMITED VERSATILITY: High visibility suspender type reflective harness vest for ANY outdoor activity; including Trekking, Running, Cycling or motorbiking, Walking, Jogging, Construction or traffic work,Roadside emergencies where high vis clothing is required.