The Wild Aspen 0 is meticulously crafted to provide comfort throughout all four seasons. This sleeping bag incorporates synthetic insulation, offering an exceptional warmth-to-weight ratio. Crafted from lightweight yet durable micro polyester, the shell resists water and abrasions. The inner liner is expertly designed to trap warmth effectively. With a fully adjustable mummy hood and an expanded foot box for added comfort, the Wild Aspen 0 is tailored to ensure maximum ease. The integration of a zipper draft tube guarantees a night of undisturbed sleep by effectively keeping cold air at bay.