Cupture 2 Vintage Blue Mason Jar Tumbler Mug With Stainless Steel Lid and Straw - 20 oz Heavy duty double wall insulation with solid one piece outer body and carrying handle. Threaded Stainless Steel Lid, with Silicone Gasket Seal, and Reusable Straw included. BPA Free Strong & Durable Plastic (Acrylic) | Rinse & Reuse | Large Opening for Easy Filling and Cleaning. Safer for use around the swimming pool, at the beach, and in the hands of young ones.