The SABBATICAL Aurora DX is an all-around, three-dimensional sleeping bag that doesn't require a separate sleeping bag cover. It features a durable 40D waterproof and breathable Aurora Tex material on the outer shell and high-quality 760 fill power down. Designed for comfort while camping, it uses an original cutting pattern that doesn't restrict movement, making it easy to roll over and relax even while inside the sleeping bag. Compared to the Down Bag STD, the fabric is thicker and the down has a higher fill power, resulting in increased heat retention. The regular size is suitable for individuals up to 183cm tall, while the short size is for those up to 165cm tall. Choosing the short size is recommended for smaller individuals to fully utilize the sleeping bag's performance, making size selection an important factor. The Aurora 750DX is a four-season model that can also be used for winter camping. Used three times. There are no noticeable scratches or stains, but please understand that this is a used item before purchasing.