The Aerostat 7.0 Down Mat Long is engineered for extreme cold weather, utilizing Exped's patented construction alongside innovative Helix technology. Designed for durability and long-lasting performance, this mat features robust welding and a tough 30 denier Nylon ripstop fabric. The integrated Windsock and stuff sack allow for easy inflation while preventing moisture from entering the mat. The Windsock has been redesigned to be shorter and wider, making it more user-friendly, especially when inflating the mat inside a tent. Aerostat Down 7.0 Sleeping Mat - Long