IceMule Coolers knows that warm drinks on the second day of your hiking or camping trip can diminish your enjoyment of the outdoors.  They have created the IceMule Boss ($300) as a solution to that problem.

The Boss is a premium cooler built into an easy to carry backpack.  It uses 3cm closed-cell PolarLayer XT foam for multi-day ice retention which you can boost by adding air via a special valve for extra insulation.  The Boss also sports welded seams, a completely waterproof proprietary MuleSkin fabric, a suspension system made up of ventilated airmesh back pads and carrying straps, a cushioned hip belt, and a sternum wrap that makes a very comfortable burden even when loaded with its just over 60 lb. load capacity.  As well as the large cooler compartment, the Boss has three oversized external pockets with waterproof zippers (also insulated and padded).

Just in case you need something more than cold beer, the Boss is also fitted with a large number of MOLLE & Clip Points for attaching other gear to bring along.   [via]