Hydroflask Small Flex Bottle Boot helmet salw bicycle-specific formulation forms a durable

bicycle-specific formulation forms a durable film that repels mud

with Altus derailier & shifter

The base-mounted switch allows for easy transition between high-volume and high-pressure settings

Keep life moving with our 21 oz bottle and Standard Flex Cap

you can have the freedom to throw in your helmet and some tools without getting hit with a fee at the bag check counter

Hydroflask Small Flex Bottle Boot helmet salw bicycle-specific formulation forms a durableHydroflask Small Flex Bottle Boot Make your Hydro Flask your own with a colorful, durable silicone Flex Boot. Customize your look and protect against bumps and dings. Small boot fits 12 24 oz wide and standard mouth bottles. If your bottle is bigger than 24 oz, check out the Medium Flex Boot here! Product Benefits Removable, silicone boot adds extra protection to your Hydro Flask Small boot fits 12 24 oz wide and standard mouth bottles BPA Free