Size: Adult, M/L/XL (51x53). Chest circumference 70-140cm. Length 140-190cm. Certified according to standard EN 13356:2001 TYPE2 2016/425. Safety braces provide better visibility in the dark and are ideal for walking, running or cycling. Before going out into traffic, put on the safety harness. Make sure the seat belts are correctly fitted and fit snugly against the body without being too tight. Do not wear clothes or backpacks over the safety harness!