When you slip on the Nightfall Vest, you never have to worry about if the sun is high in the sky or has already set. The 360-degree reflectivity and 150-foot visibility vest is made of breathable mesh and fits perfectly to your figure.SAFETY FIRST150-foot visibility and 360-degree reflectivity makes this perfect for morning or nighttime activities.COMFORT FITThe lightweight breathable vest with adjustable side buckles allow for you to tighten the vest to your figure.