The Cabela's Silipint Drinkware is an eco-friendly superhero that'll outlast and outperform any glass, plastic, stainless steel and ceramic mug out there. Derived from sand, silicone manufacturing and reusability helps keep Earth's less abundant natural resources intact. Plus, Cabela's Silipint Drinkware is BPA-free, 100% food-grade tested, and freezer-, microwave-, and dishwasher-safe. Imported. Patented silicone drinkware BPA-free Insulates hot and cold drinks Microwave-safe Dishwasher-safe