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Sea to Summit Alpine AP III

photo: Sea to Summit Alpine AP III 3-season down sleeping bag
Sea to Summit says:
The Alpine(TM) down mummy sleeping bag is designed for the rarefied world of high-altitude and arctic conditions. It features cutting-edge materials the highest quality Ultra-Dry down and complex construction. Expedition mummy sizing allows you to wear extra clothing and boot liners inside the bag.If you are going above or beyond the Alpine is the bag you will want to take with you.HighlightsBest UseMountaineeringPerformanceVery cold weather: -5AdegF (comfort range -5AdegF to 30AdegF)Extreme weather: -40AdegF (comfort range -40AdegF to 20AdegF)ShapeA technical mummy shaped sized to allow you to wear additional clothing without compressing the down insulation.An oversized foot boxFeaturesULTRA-DRY Down 850+ Loft 90 Down Cluster Premium Goose Down certified Responsible Down Standard (RDS)Free-flow zipper system: one full-length YKKA(R) #5 main zip and a half-length zip on the opposite side for ventilation.Expedition sizing gives you room to wear extra clothing inside the bag.Anatomically-shaped oversized foot box can accommodate boot liners.Technical shaped hood with hidden drawcords for maximum insulation.An oversized draft collar which fits snugly around your shoulders.Internal pocket for phone / GPS / valuables.Includes lightweight Ultra-Sil(TM) compression bag and storage cell.FaqsIs this down mummy sleeping baga |A good choice for occasional cold-weather use Yes. The Alpine -40AdegF's high-lofting down technical hood oversized draft tubs and draft collar work well in really cold weather; an Alpine -5AdegF is designed for the extreme cold of alpine/expedition use. Occasional cold-weather users might look at an Ascent/Altitude paired with a Spark or Flame as an alternative.Suitable for bivvies Yes. The NanoShell(TM) shell fabric is windproof and highly water-resistant - it will protect the Ultra-Dry Down(TM) from external moisture.Able to be zipped to another sleeping bag No. The Alpine is not designed to be zipped to another bag.Read up on how the shape construction and down quality of a sleeping bag will affect how well you sleep HERE


regular long
Price Current Retail: $649.00-$849.00
Historic Range: $181.98-$849.00
spring 2011
regular long
Weight 3 lb 8 oz / 1580 g 3 lb 15 oz / 1790 g
Fill weight 2 lb 1 oz / 930 g 2 lb 3 oz / 1000 g
EN comfort 10 F / -12 C
EN lower limit -4 F / -20 C
EN extreme -44 F / -42 C
Fill 850-fill down
Shape Mummy
Max user height 6 ft 0 in / 185 cm 6 ft 8 in / 205 cm
Shoulder girth 60 in / 152 cm 61 in / 156 cm
Hip girth 51 in / 130 cm 54 in / 136 cm
Foot girth 41 in / 104 cm 42 in / 107 cm


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