Experience unparalleled comfort and protection in extreme high-altitude and arctic conditions with the Sea to Summit Alpine ApII mummy sleeping bag. This meticulously crafted sleeping bag is equipped with state-of-the-art materials and top-quality Ultra-Dry down, offering the ultimate solution for challenging environments.

Designed with the utmost precision, the Alpine ApII features expedition mummy sizing, allowing you to wear extra clothing and boot liners inside the bag, ensuring warmth and comfort in the harshest of conditions.


  • ULTRA-DRY Down: Utilizes 850+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS) for exceptional insulation.
  • Free-Flow Zipper System: Equipped with one full-length YKK® #5 main zip and a half-length zip on the opposite side to provide ventilation as needed.
  • Expedition Sizing: Offers extra room for wearing additional clothing inside the bag.
  • Anatomically-Shaped Foot Box: Accommodates boot liners comfortably.
  • Technical Shaped Hood: Features hidden drawcords to maximize insulation and adjust to your needs.
  • Oversized Draft Collar: Fits snugly around your shoulders to prevent heat loss.
  • Internal Pocket: Conveniently stores your phone, GPS, or valuables.
  • Includes Lightweight Ultra-Sil Compression Bag and Storage Cell for easy packing and organization.


  • BEST USE: Mountaineering
  • PERFORMANCE: 4 Season
  • WEIGHT: 2lbs 15oz | 1340g
  • COMPRESSED VOLUME: 9.3 liters

When you're venturing into the most challenging and demanding environments, the Sea to Summit Alpine ApII sleeping bag is your trusted companion, providing you with the warmth, protection, and quality you need to push your limits.


Model # AAP2-R
Barcode # 9327868094905
Brand Sea to Summit

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