The only thing that can top the worlds first biodegradable foam cup and food container is the matching Vio biodegradable plastic lid. Vio lids fit snuggly over the brim to help keep hot drinks and food items hotter for longer, or cold drinks and food chillier. Whatever you serve in Vio foam cups and containers, these lids reliably keep it from spilling out. And at just pennies apiece, Vio lids help you keep a tight lid on supply costs too.