Dehydration makes running long distance one of the most dangerous athletic activities, so make absolutely certain you are properly hydrated with a hydration system! If you're running or hiking with an existing backpack and want to add a water bottle or hydration bladder you can use one of the hydration pouches below! There are a lot of ways to carry water, both with water bottles and hydration packs, but when you're traveling long distance on foot or by bike you probably won't want to carry one in your hand, so having the right kind of pouch is a big help. If attaching to an existing backpack, you may want a hydration pouch that connects to MOLLE webbing, or you may simply want a small folding water pouch that fits like a fanny pack. We have those and more from some of the top brands in hydration systems like BlackHawk, Maxpedition and Camelbak. Always make sure to drink plenty of fluids when you're exercising and use a hydration pouch to keep your water easily accessible.