Keep cold drinks icy cold and hot drinks piping hot with the 21 oz. insulated stainless steel water bottle by Hydro Flask. This size fits well into your car cupholder, a small shoulder bag or the pocket of a backpack and the double wall vacuum insulation keeps any temp for hours.

• S21SX417
• Versatile: middle-of-the-road size
• TempShield™ insulation: eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours
• Durable 18/8 Pro-Grade Stainless Steel construction
• BPA-Free and Phthalate-Free
• Proprietary Powder Coat: easy-grip & sweat free
• Compatible with Standard Mouth Insulated Sport Cap
• Lifetime Warranty