The Peregrine Aerie UL PrimaLoft® Air Sleeping Pad was developed to maximize comfort and warmth in the lightest package possible. It features an Aorta Two Valve Inflation System to easily adjust and fine-tune to your level of comfort and insulated with PrimaLoft® Black Hi-loft insulation. A proprietary application of the PrimaLoft® greatly extends the insulating properties and power and cuts heat sink significantly, keeping things nice and toasty for extended 3-season use into the early spring and late fall. I-beam construction provides good stability and larger outer beams reduce the chance of rolling off the pad during the night. The Peregrine Aerie UL PrimaLoft® Air Sleeping Pad will cover your needs for nearly anything nature can throw at you.