Two open side pockets plus a zippered front pocket

-Derbyshireman

mesh-lined with a zipped opening on each side

Carbide tips are brilliant on trail

Performance fit means no slipping

21 oz standard mouth w flex straw cap trillium filson Two open side pockets plusDouble 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