Go the distance with the Aerial from Champion! It features a glow-in-the-dark design with a mesh overlay, laces, ankle pull tab, padded collar, mesh lining, signature Sport Comfort insole, and a non-marking outsole. Manmade materials. Glow-in-the-dark accents are decorative only and not meant to be a safety feature that will enhance the wearer's visibility at night. Glow-in-the-dark products require a 2-hour charge in sunlight or artificial light before they will glow.