Infinity is an ultra-lightweight, completely recyclable, BPA-Free alternative to Polycarbonate resins. With exceptional clarity, jewel-like brilliance and 25% weight savings over Polycarbonate; its beauty is truly inspired. Furthermore, Infinity will not absorb food odors like other plastics and will not leach plasticizers or other chemicals into either food or beverage. Infinity pieces remain strong in both hot and cold and are so light that they actually remain buoyant when filled with water. Amazingly, Infinity actually becomes more stain-resistant with every wash.