Your perfect travel companion. Keep life moving with our 21 oz bottle and Standard Flex Cap. It stashes easily into a small shoulder bag, your pack's side pocket, or your car cup holder. And it holds enough ice-cold goodness to keep you going for hours without weighing you down. No wonder it's one of our bestselling water bottles.

• TempShield - Our unique double-wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold, and hot drinks stay piping hot so you can stay refreshed for any adventure.
• Pro-Grade Stainless Steel - Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer - and the durable construction stands up for whatever life brings.
• Proprietary Powder Coat - Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.
• Hydro Flask’s Parks For All program supports nonprofit organizations focused on building, maintaining, restoring, and providing better access to parks. To date, we’ve donated more than $2.5 million dollars in support of the parks that help us all feel happier, healthier and more fulfilled.
• Model Number S21SX110 (White)