Maximum hydration with fewer refills from work to the gym to your front porch and beyond. Double-walled 18/8 recycled stainless-steel construction Vacuum insulated to keep drinks hot for 5 hours, cold for 9 hours, and iced for 40 hours Advanced FlowState lid features a rotating cover with 3 positions: Splash-proof straw opening Sip-through drink opening Fully covered & closed Reusable straw included Silicone gasket seal reduces spills; Lid disassembles for deep cleaning Ergonomic handle includes comfort-grip inserts for easy carrying Durable with a Built for Life lifetime warranty Fits most car cup holders Eco friendly; Reusable; BPA free Holds 30 oz. Add your custom personalization Note: Hand wash only ProudPath item: Stanley contributes more than 1% of their net income to causes related to nature conservation and sustainability, equitable and empowered access to the outdoors, and food security; They also donate product and volunteer time and collaborate with values-driven organizations who are creating change in their local communities