Usually the hydration packs are used for outdoor activities, such as bicycling and hiking, also for military, it is very convenience, using the hydration packs for activities, we don’t need to stop to get a bottle for drink.

Usually the materials for the hydration packs are nylon, polyester containing a bladder, and the popular materials for the bladder is TPU(Thermoplastic polyurethanes), which is eco-friendly and durable, usually the size range for the bladder is from 1.5L-3L.

Looking for the hydration packs from bag manufacturer, please visit Hydration-Packs.html

I will introduce more models of the packs in my further articles.

Your sincerely,

Ruby