Hydro Flask 21 Oz Standard Flex Straw Cap Drinkfles - Harbor Blue

The Hydro Flask 21 Oz Standard Flex Straw Cap Bottle in Harbor Blue combines a durable 18/8 pro-grade stainless steel body with TempShield® double-wall vacuum insulation, keeping drinks cold for up to 24 hours or hot for up to 12 hours. Its leak-proof Flex Straw Cap and Color Last™ powder coat make it a reliable everyday bottle.

Highlights

• TempShield® double-wall vacuum insulation
• Keeps cold up to 24 hours, hot up to 12 hours
• Leak-proof Flex Straw Cap
• Durable Color Last™ powder coat
• BPA-free and phthalate-free

In daily use

The standard mouth fits most backcountry water filters, and the flexible strap makes it easy to carry. The bottle is dishwasher safe (top rack recommended) and condensation-free, so it won't sweat on your desk or in your bag.

Full specifications

• Capacity: 21 oz (621 ml)
• Bottle material: 18/8 pro-grade stainless steel
• Insulation: TempShield® double-wall vacuum
• Cap type: Flex Straw Cap
• Cap material: BPA-free polypropylene
• Color: Harbor Blue
• Keeps cold: up to 24 hours
• Keeps hot: up to 12 hours
• Mouth type: standard
• Coating: Color Last™ powder coat
• BPA-free: yes
• Phthalate-free: yes
• Dishwasher safe (bottle): yes, top rack recommended
• Leak-proof: yes (when closed)
• Handle type: flexible strap
• Condensation-free: yes
• Compatibility: fits most backcountry water filters

Final note

A reliable, insulated bottle with a convenient straw cap, built to keep your drinks at the right temperature all day.