Hydro Flask 21 Oz Standard Flex Cap Stone:

• TempShield double-wall vacuum insulation keeps drinks cold up to 24 hours, hot up to 12
• Flex Cap is leakproof when closed
• Honeycomb Insulated Cap for maximum temperature retention
• Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer
• Color Last powder coat is durable, sweat-free and colorful
• BPA-Free
• Dishwasher safe
• Not for use on a stove, in a microwave or freezer