This classic line of mummy bags combines outstanding design, materials with great functionality while delivering superior value. This is the ultimate collection for the mid-market backpacking and camping sleeping bags. These bags offer the right choice at the right value to the broadest range of customers. One example is the new minus 20 degree Superpacker to complete the 20 degree and 0 degree Superpacker. This functional cold weather bag also comes supersized with a 40-inch wide Magnum model to provide extra roominess to accommodate the biggest packer.