Urban Runner Reflective Safety Vest for Running, Cycling, Jogging, Construction Work - Includes 2x High Visibility 3M Bands for Arms and Legs These vests have been ergonomically designed to fit perfectly around your upper torso, cover your rib cage, and hug you tightly, even in the windiest of conditions. The polyester, lightweight fabric is dyed a fluorescent yellow ensuring high visibility in all daytime and nighttime conditions from up to 250 yards. Included are TWO reflective bands for your arms or legs for ultimate visibility! They can also be fashioned into a dog collar! Our vests come in 4 different sizes (S, M, L and XL). Chest sizes - S: Up to 36 inches; M: 36-40 inches; L: 40-44 inches; XL: Over 44 inches. Be seen, be safe! We stand by our vests and offer you a lifetime, 100% satisfaction guarantee!