Custom Tumblers & Travel Mugs, 20 oz Economy Stainless Steel Tumbler With Plastic PP Liner - Insulated & BPA Free, 20 oz Economy Stainless Steel Tumbler with plastic PP liner. Has double wall construction for insulation of both hot and cold liquids. Equipped with spill-resistant, slide action lid with rubber gasket. Non-skid rubber bottom to hold your bottle in place. Keeps drinks hot or cold for up to 4 hours. Meets FDA Requirements and is BPA free. Hand Wash Recommended. Material: Stainless steel outer and plastic PP Inner. (Straw not included). ... #BTL201 $8.14/each.