Tough. Impact and shatter-resistant. Drop Test: Outperformed SAN and Polycarbonate. Dishwasher durable. Not just dishwasher safe, but will stay clear and tough even after hundreds of cycles. Resistant to cracking or crazing. Dishwasher Test: Outperformed SAN and Polycarbonate. Odor, taste, and stain resistant. Resistant to taste, staining, and odor retention. Temperature resistant. Can contain hot liquids at temperatures up to the boiling point and are freezer safe. Designed for Foodservice. Tumblers designed to stack without sticking together, reducing storage space. Tumbler bottom designed for water drainage. 100 Percent BPA-free.