Horizontal bag system for Ergon BE backpacks made of FDA tested hygienic polyurethane. This extremely strong material can be pulled up to eight times its size without breaking. Thanks to the large opening, it is very easy to fill and clean the bag as it can be turned inside out. The extra-long, specially designed Ergon backpack hose is made so you won't feel it at all. A valve with a swivel mouthpiece prevents knots from forming. Thanks to the plug and play connector, the bag can be detached from the hose. This means that you can simply clean or fill the bag without having to take the hose out of the backpack. Which is a great advantage over other systems. An integrated valve prevents fluid from escaping from the bag if the hose is disconnected. Name: BH150 Opening: wide Capacity: 1,5 L Hose: Extra Long, 127 cm Material: Hygienic Polyurethane Compatibility: backpack series Ergon BE1, BE2, BE3