Carefully crafted for year-round coziness, the Wild Aspen 0 is engineered with four-season comfort in mind. This sleeping bag boasts synthetic insulation that excels in delivering outstanding warmth-to-weight performance. The micro polyester shell is both lightweight and robust, offering water resistance and durability against abrasion. Inside, the liner is expertly designed to lock in warmth. With a spacious rectangular design, the Wild Aspen 0 ensures ample room and enhanced comfort. The inclusion of a zipper draft tube guarantees a night of uninterrupted sleep by sealing out the cold air.