Featuring Optima. The leak-resistant reclosable lid. Lift. Lock. Reclose. www.dart.biz. Solution for active lives. Reclosable lid. What Consumers are Saying About Optima: A complete easy to use solution for your to-go beverages! This is truly a remarkable lid! The best coffee cup top in history! An average weight paper hot cup generates 181% more solid waste by weight than a comparable foam cup. This paperboard tray was produced using 100% recycled fiber. Made in USA.