This spine vpd 20 hydration pack 25l combines the superior vpd 20 back protector with a 25l hydration pack so you have a high level of back protection with hands free hydration the pack offers a high level of protection with extreme shock absorbing properties to keep you protected there are numerous compartements which you can use to store all your essentials and access them with ease the integrated back protector has been tested to the en 1621 2 protection standard and you can ea