The Big Agnes Hinman is a self-inflating, high-density foam-core cold-weather pad with a two-way adjustable valve that makes inflation, deflation, and micro-adjustments easier than ever. The soft, stretch-fabric top provides a cushioned yet very durable sleeping surface. With an R-value of 5.0, these pads are a great choice when seeking durability and supreme insulation in colder temps. (For maximum insulation in cold weather we recommend pairing with a closed cell foam pad.)