The most revolutionary supplemental pad available. The pad can be used in so many ways that it almost mind boggling. First of all the pad can be, in its most traditional sense as a sit start pad. The pad is filled entirely with closed cell foam. It's is quite firm as a 3 inch pad, but works perfectly as a sit start pad or as a bouldering spotter shield. The true magic to the pad starts once you've opened the outer zipper to find the contents of the inner pad. The secret surprise inside is a folded pad which operates as a "pile pad", geniusly designed lay over all the pads in the stack covering the gaps between the pads. Lastly, this pad when folded one time in half down the long seam will function as a sleeping pad in your tent. Load it up for the approach by attaching it to our bouldering pads.