Staying hydrated is not something we take lightly around here! There's also no other feeling like getting in your fitness groove or being out on a trail and not having an ample supply of water to keep you safe. Hydration packs may not be a brand-new concept, but we're always surprised at how many ladies tend to shy away from a hands-free pick. Some packs may be more geared toward men, but we've pulled shapes that will work for ladies too. Interested in making the investment in your hydration this Summer? Click through these 10 pack picks.