The Alta sleeping bag has a new fit and materials, resulting in a 20% improved heat-to-weight ratio. Its effective fit minimizes heat loss, ensuring a good night's sleep. The Alta series includes models for various conditions and has a unique women's fit. The redesigned zip, neck collar, and hood drawstring increase comfort and ease of use. The sleeping bag has anti-skid material, an integrated pillow pocket, and an updated compression bag. The opening now has a reflector for easier use.