For a few extra grams and a slightly larger pack size, the Hamelin extreme cold sleeping bag from Sea To Summit offers the benefits of synthetic insulation in wet or sandy bivouacs. Designed for comfort and performance, it features a fitted, technical hood and a dedicated foot box for increased mobility. Then, its relaxed mummy cut offers plenty of room to move. The full-length side zip extends to the foot, while a half-length zip on the other side provides ventilation and versatility. The Hamelin is a versatile 3-season sleeping bag that can be used in temperatures down to -28°C in extremes.

Features of the Hamelin Sea To Summit extreme cold sleeping bag:

• TTemperatures: EN13537 Standard
• Comfort temperature: -3°C Temperature at which a woman can sleep comfortably.
• Comfort limit temperature: -9°C Temperature at which a man can sleep comfortably for 8 hours
• Extreme temperature: -28°C Temperature at which after 4 hours a woman will feel a sensation of cold that can lead to frostbite and/or hypothermia.

• Bluesign approved 20D recycled polyester shell with PFC-free water repellent treatment.
  
• Bluesign approved 20D recycled polyester lining.
• 100% recycled, RCS certified, multi-denier synthetic insulation from post-consumer materials.
• Free Flow zipper system and relaxed mummy fit for optimal comfort and performance over multiple seasons, in varying weather conditions and harsh environments.
• Regular: For a person up to 1.85 m. Filling 1210 g Total weight of the bag: 1626 g Compressed volume: 14L
  
• Long: For a person of 1.98 m max.Filling 1375 g Weight of the bag: 1837 gCompressed volume: 16L