21 oz standard mouth w flex straw cap black gregory The latest version features the

The latest version features the easy-to-use TwinLock valve for even speedier inflation and deflation

while the grid mesh construction keeps airflow constant to regulate your temperature when it matters most

They make fitting everything in your bag a breeze — and keeping it all in order even easier

mobility — and refines it with a seamless construction that hugs close

Garment-dyed and washed for immediate softness

21 oz standard mouth w flex straw cap black gregory The latest version features theDouble insulated stainless steel, to banish lukewarm drinks forever Designed for everyday adventures, the 21 oz Standard Mouth bottle from Hydro Flask is their mid range and most versatile product. Small enough to fit in a rucksack side pocket or your cars bottle holder but carrying over 600 ml of liquid, the 21 oz insulated bottle is the perfect companion for your daily travels. It features an airy leakproof Flex Straw making it super easy to hydrate