Hydro Flask 21oz Standard Mouth Insulated Bottle + Flex Straw Cap - 621ml - Oat - 2025

Flip it and sip it

A cupholder-compatible water bottle with leakproof Flex Straw Cap and boot—easy to fill, easy to drink. Open it up, add your ice, and flip to sip. The insulated stainless steel keeps it cold for up to 24 hours.

Features of the Hydro Flask 21 oz Standard Mouth Thermo Bottle + Flex Straw Lid - 621 ml:

• 24 hours cold, 12 hours hot
• TempShield® Double wall vacuum insulation
• Dishwasher safe
• Leak-proof when closed
• Pure taste, no flavor transfer
• Fits in most cup holders
• Durable stainless steel
• BPA free
• Dishwasher safe
• Flex Straw Cap Not suitable for use with hot liquids
• Not suitable for use on the stove, in the microwave or in the freezer