Keep some of your important stuff that you need quick access to in one of the essential gear for going to the gym or working out in general – the water bottle. The Contigo Kangaroo water bottle has a handy compartment that's big enough for a few keys, some cash, credit card, ID, or your gym entry card so never need to leave them on the bench or window sill again. It uses autoseal technology to make drinking easy and spill-free. Simply press and hold the button to drink and release to seal. However, since there's no cap to open you need to be careful where you put the bottle to prevent the autoseal button from being pressed accidentally and spilling water all over the place.