Hydration is essential to survival when riding in hot climates. Whether you are out on the trail or simply cutting through the desert on asphalt, it is imperative to stay hydrated, which will keep your brain from shrinking and causing poor decisions to be made. Hydration backpacks are a great way to keep yourself hydrated while on the bike. The Kriega Hydro 3 seen above is an option MO editor John Burns has previously used. Not a fan of wearing a backpack? Some tank bags offer a pocket for your hydration system.