Hydrapak Bishop EXT
Here's what other sites are saying:
The Bishop EXT from Hydrapak is an all-day pack featuring a completely new chassis with an internal aluminum-shank frame, new Air Tread backpanel, and Swivel Tacked shoulder straps. It has a helmet carrier, multiple organization pockets, a rain fly and our new high-flow Blaster bite valve. The Bishop is well-suited for epic adventures!