Stackable Shatterproof Wine Glasses from Savorware &mdash; Tritan Plastic, 11oz, Set of 4 &mdash; Short Stem, Portable, and Unbreakable UNBREAKABLE: No matter how many times they go for a tumble, they won't shatter. NO HARMFUL CHEMICALS: They're made from resilient Eastman Tritan plastic which is BPA and EA free. COMPACT AND STACKABLE: Stack them easily in cramped cabinets, RV's, campers, boats, you name it. DISHWASHER SAFE: Simply place them in the top rack and avoid using heated dry. RESEMBLES GLASS: They'll never come off as cheap. Guests can easily mistake them for glass.