Welcome to PETSOLA! Soft, comfortable, lightweight form-fitting mesh Features highly visibility reflective breathable fabric material for safety Comfortable worn over winter clothing Adjustable loop tape fastener at waist to fit both men and women Designed for runners and athletes, children and adult, perfect for night walking, cycling, running, jogging and so on Specification: Material: Polyester Length: Approx. 16 inch/41 cm Waist Circumference: Approx. 37.8-43 inch/96-110 cm It can be visible at about 200 meters, machine washable Package Includes: 1 Piece Reflective Vest Note: Please allow slightly difference due to manual measurement. Color maybe slightly different since different monitor. Thanks!