Kicking bad guys' butts while clad in all-black skintight latex can make you really, really sweaty.

It's not easy to sneak around as a double agent or to run errands for Nick Fury over at S.H.I.E.L.D. when you're practically wearing a sauna suit, but Black Widow has the perfect trick to keeping herself sane -- and that's to stay hydrated all throughout her missions.

This officially licensed Black Widow Nalgene Tritan 32oz Water Bottle is not only the perfect tool against dehydration, but it also has graduations to help keep track of fluid intake.

It's the only way to keep in tip-top shape for all that crime-fighting -- not to mention keep her supple skin glowing and her auburn locks as luscious as can be.

And hey, with her name slapped right on there in big, bold letters, it's easy to retrieve it if she ever misplaces the water bottle, too!