Hydroflask 21 oz Standard Mouth
The Hydroflask 21 oz Standard Mouth is an insulated travel flask with a 621 ml volume that lends itself to casual single-day use at home, at work, in the gym, or in a backpack. A high quality construction keeps drinks cool or hot, doesn't retain flavours, and is completely BPA-free. Hydroflask's best-selling flask.
• Versatile, middle-of-the-road size
• TempShieldTM insulation eliminates condensation and keeps beverages cold up to 24 hours or hot up to 12 hours
• Durable 18/8 Pro-Grade Stainless Steel construction
• A proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere
• BPA-Free and Phthalate-Free
• Lifetime Warranty