Use these Rice Owls face covers when you're at a game, out in public, or just showing your team spirit. They're great for fans of all ages who want to represent their favorite team. The outer is made of 88% Polyester and 12% Elastane, with a cotton lining. There's no specific mention of size or weight, but they're designed to be comfortable with stretchable elastic ear straps and an interior pocket for a filter (filter not included). Just make sure to wash them after each use and follow the care instructions.