OspreySeral Hydration Pack(Return to Product Page)

This a very well made waist pack as youd expect from Osprey. My problem is the bladder. Its extremely difficult to fill without making a mess. The whole top of the bladder opens with a terribly designed clip that goes over the mouth of the bladder with it folded over. The bladder itself is partitioned at several points making it difficult to clean and rinse out. I wish I would have gotten the model that just held two water bottles.