The essential Quickstart 2.0 4 Liter Hydration Pack with one main back & one small storage pocket at the back is designed for short to moderate road and trail running & hiking.

Other Cleaning Tips

Stains
Bladder staining is generally caused by food coloring used in liquids. This staining does not affect the functionality of the bladder, yet can be difficult to remove. We recommend using a chlorine free, non-toxic, and biodegradable tablet to combat stains and odors.

Plastic Taste
Occasionally users may notice a plastic taste. To reduce, squeeze lemon juice into the reservoir, fill with water, and place in the freezer. After frozen, remove, thaw, and rinse.