Hydro Flask - 21oz Standard Mouth Flex Cap - Black

The 21oz Standard Mouth Flex Cap water bottle is a stainless steel solution for daily hydration. The insulated, cup holder-compatible design keeps cold drinks cold for 24 hours, and hot drinks for up to 12 hours. Features Easy to Transport Versatile, middle-of-the-road size TempShieldTM Protected Keeps cold up to 24 hours Keeps hot up to 12 hours 18/8 Pro Grade Stainless Steel BPA-Free and Phthalate-Free Durable, sweat-free powder coat finish (or the Stainless option) Compatible with Standard Mouth Insulated Sport Cap