TriMax Triple Insulation Keeps Drinks COLD for 36 Hours and HOT for up to 10 Hours, Premium 18/8 stainless steel - BPA-Free, No phthalates, No liners Wide mouth for easy filling, smaller spout for easy pouring & drinking; integrated tea strainer included, Top is interchangeable with Eco Vessel Flip Straw Top and Coffee Lid Thermal Bottle with Sturdy carrying strap, recyclable bottle Removable Stainless Steel Strainer for Tea, Fruit, or as an Ice Dam 20 fl. oz./600mL