Sea to Summit Alpine III

The ideal refuge on high altitude expeditions and in the most extreme cold.

Features: Contoured mummy, 3D NanoShell™, differential cut shell with 3D side walls, offset baffles, 60/40 fill ratio, side block baffle, anatomically tapered box foot, zip draft tube with anti-snag, neck draft tube with dual elastic adjustment, cushioned internal hood drawcord with dual adjustment, 2 way YKK #5 side zip, medium sized internal zip pocket, includes lightweight Ultra-Sil® compression bag, mesh storage cell and laundry bag.
Down: 850+ Loft 95% European Goose Down
Fill weight: Regular 930 g/33 oz | Long 1000 g/35 oz
Bag weight: Regular 1580 g/3 lb 8 oz | Long 1790 g/3 lb 15 oz
Length / zip options: Regular - left zip | Long - left zip
Season ratings: Winter/Extreme
Temperature Rating: Comfort -12 Degrees C, Lower Limit -20 Degrees C, Extreme -42 Degress C
Suggested use: Base camp, Winter trekking, Snow camping, Ski touring, Alpine climbing, Expeditions
Compression bag: Large - 20L to 6.5L