A synthetically insulated sleeping mat that gives high levels of warmth, exceptional comfort and a small pack size. With Exped patented construction, the Aerostat Synthetic 7.0 Mat Long uses durable 30 denier Nylon ripstop fabric and robust welded construction. With an insulating R value of 4.0 it’s suitable for year round backpacking and mountaineering. Equipped with a self-sealing Gas Mask valve, the mat offers an efficient two-way system for both inflation and deflation. This design ensures air stays during inflation and allows for quick deflation when it’s time to pack up. The mat also includes a Windsock for effortless inflation and deflation. It also prevents moisture from entering the mat, preserving thermal efficiency and preventing internal damage. Aerostat Synthetic 7.0 Sleeping Mat - Long