The Searc is a 50 litre mountaineering pack in Macpac's famed highly durable, Aztec fabric with Active-X harness system and a moulded back panel. The Serac has a single compartment with removable bivi mat and removable padded hipbelt. Serious mountaineers and backpackers will love this pack, as it will have no problem of dealing with years of abuse. The design is sleek, slim and focused on the job at hand: getting you up and down the mountains safely and comfortably. It doesn't have any extraneous features or unnecessary fuss, just the things you need. This pack won't let you down.