GROUNDSCONTROL FILTER - Separates grounds from your brew for a balanced flavour in every cup. 18/8 STAINLESS STEEL - Made with kitchen-grade stainless steel so it’s puncture and rust-resistant. DOUBLE-WALL VACUUM INSULATION - Keeps your coffee hot for pour after pour. DISHWASHER SAFE - Because no one needs more work to do. ALL, YETI PRODUCTS ARE BPA FREE