50% Nylon/50% Polyester sport towel. Latex-free, lightweight, soft, breathable. When wet, towel cools for up to 2 hours; when dry it absorbs sweat. To activate: 1 - soak towel, 2 - ring out excess water, 3 - snap to activate (to re-activate re-soak and snap). Hand wash only. View hang tag instructions. *24-hour rush service only applies to catalog quantities up to 750 units.