Universal Fit Adjustable, elasticated straps enable to fit in Kids & Adult Size. Whatever your size & shape this sash will adjust with you so you dont need to worry about getting different sizes if your size changes. Dont weigh yourself down carrying clothing for changing light conditions. Simply pop on our High Visibility Reflective Sash over your comfortable weather appropriate clothes for Extra Safety as our Reflective Strip & Bright High Visibility Colour helps increase your safety in All Light Conditions. Fastening: Buckle. Adjustable Chest & Shoulder Straps allow you to be as active as you want. We provide safety vests with two reflective strip sizes 4x1.5cm: refers to the width of the 4cm elastic band, and the width of the 1.5cm reflective film. 5x2cm: refers to the width of 5cm elastic band, the width of 2cm reflective film.