Insulated Air Core pads - winner of the prestigious Editor’s Choice Award from Backpacker magazine in 2004 - take the best features of our popular Air Core and add PrimaLoft synthetic insulation to create the ultimate air chamber pad. They provide comfortand warmth for your camping experience, just like home.Design Features : - 2.5″ thick, 3 season Air Core pad filled with PrimaLoft insulation. M3 synthetic fill used in the 25″ wide pad - Full length 2.5″ thick pad is lightweight and packs small - Packs down to a compact 3.75″ x 10″ or 4.25″ x 10″ size - Unique construction technique prevents the insulation from shifting inside the air chambers. - The I-beam construction technique is functionally superior to the typical welded-through construction of other air mats. Die cut holes in each I-beam allow air to flow freely between chambers giving constant support and comfort. - I-beam construction makes inflation quick and easy - Durable 50 denier nylon fabric top and bottom used on the 20″ wide pads and 70 denier nylon fabric top and bottom used on the 25″ wide pad. - Durable, water repellent (DWR) coating sheds water and stains - PrimaLoft features a silicone treatment which serves as an anti-microbial within the pad - Internal polyurethane (PU) coating makes pad waterproof - Exclusive : Non-breakable, EZ-Flate brass valve for easy closure - Use a closed cell foam pad with any of our Air Core Pads for extra insulation, especially when camping on frozen ground, snow or cold rock. The foam pad provides a barrier against the cold from the ground. -REM Insulated Air Core Pads come with a stuff sack, repair kit, and a 100% guarantee - Storage : We recommend storing the Insulated Air Core pad flat, unrolled and uninflated with the valve open so moisture may escape. - Insulated Air Core pads are not self-inflating