Sea to Summit Alpine AP II

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Specs

spring 2011 regular long
Weight 2 lb 14 oz / 1290 g 3 lb 3 oz / 1450 g
Fill weight 1 lb 9 oz / 710 g 1 lb 12 oz / 780 g
EN comfort 16 F / -9 C
EN lower limit 5 F / -15 C
EN extreme -31 F / -35 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

Where to Buy

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Manufacturer's Description

Visit Sea to Summit's Alpine AP II page.

Retailers' Descriptions

Here's what other sites are saying:

Sea To Summit Alpine APII 5F 850 fill Down Sleeping BagThe Sea To Summit Alpine APII 5F 850 fill Down Sleeping Bag is the quintessential choice when traversing those challenging high altitude trails. The sleeping bag's mummy and contoured shape, is specifically designed to trap body heat so as to keep your snug and cozy, even on the coldest of expeditions. Its zip draft tube ensures that no warmth escapes from between the zipper coils. Additionally, the zipper comes with an anti snag feature, for smooth usage and minimum inconvenience. The neck draft tube prevents drafts from entering into the bag, minimizing heat loss around the face. The lightweight Ultra-Sil compression bag, tackles the dual problem of storage and handling, making this sleeping bag exceptionally convenient. With the Sea To Summit Alpine APII 5F 850 fill Down Sleeping Bag, you'll sleep like a baby even in the coldest of climates.

- SunnySports

Free Shipping. Sea to Summit Alpine APII Sleeping Bag FEATURES of the Sea to Summit Alpine APII Sleeping Bag Contoured mummy 3D NanoShell Ultra-Dry Down Differential cut shell with 3D side walls Off set baffles 60/40 fill ratio Side block baffle Anatomically tapered foot box 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 SPECIFICATIONS of the Sea to Summit Alpine APII Sleeping Bag Comfort: 16deg F / -9deg C Lower Limit: 5deg F / -15deg C Extreme: -31deg F / -35deg C Ultra-Dry Down 850+ Loft 90% Down Cluster Premium European Goose Down Season Rating: Autumn/Winter Suggested Use: Winter backpacking, snow camping, ski touring, alpine climbing, expeditions Compressed Volume: 10 liter Compression Bag: Medium: 15 to 5 liter Length / Zip Option: Left zip SPECIFICATIONS for Regular Fill Weight: 25 oz / 710 g Bag Weight: 2 lbs 13 oz / 1290 g SPECIFICATIONS for Long Fill Weight: 27.5 oz / 780 g Bag Weight: 3 lbs 3 oz / 1450 g

- Moosejaw

By using the highest quality 850+ European down fill, Sea to Summit was able to get the Alpine ApII down sleeping bag under 3 lbs, an impressive feat for a full-feature winter mountaineering bag. Contoured mummy shape is cut with a fitted hood, broader shoulder and large chest to maintain thermal efficiency and to accommodate extra layers in cold conditions Differential allows lining to conform to your body without overlaps or gaps to eliminate cold spots Offset baffle construction allows down to maintain full loft and minimize loss of heat through the seam lines Side block baffle technique allows a 60-40 (top-bottom) fill ratio keeps top down uncompressed and you warmer Lightweight 3D NanoShell(TM) shell uses Nano Durable Waterproof Repellent (DWR) to provide a high level of water repellency while 3D Barrier promoting fast evaporation to keep humidity from affecting down loft Anatomically tapered foot box accommodates the natural position of the feet and is roomy enough for liners Soft touch lining is down proof by construction, highly breathable and durable Oversized neck collar, draft tube, and cushioned internal hood seal with dual adjustments keep drafts out Anti-snag zipper system uses a high-density poly cloth hidden in the draft tube for smooth, snag-free zipping Full length, two way zipper side and foot zip allow not only infinite ventilation, but conversion from a traditional mummy to a flat duvet YKK #5 zippers allow this bag to unzip from the top and bottom for ventilation or to be used with another Sea To Summit bag (Trek, Traverse, and Alpine) of any size to create a double bag Medium sized internal pocket is great for storing electronics to preserve battery life in cold conditions Ultra-Sil(R) compression sack packs down from 15L to 5L Compression sack, mesh storage sack, and laundry bag included Max user height recommendations - 6'0'' Long - 6'7''

- OMCgear

Designed for high altitude overnights, the Sea to Summit Alpine ApII down sleeping bag keeps your nights warm when trekking the Himalayas or touring the Alps hut to hut. High loft, premium 850-fill-power European duck down offers superb warmth with minimal weight; Ultra-Dry Down(TM) water-repellent treatment protects down from moisture. Ultra-Dry Down is a water-repellent polymer treatment applied to the 850-fill down; Ultra-Dry Down retains 60% more loft and absorbs 30% less moisture than untreated down. With a European Norm (EN) lower-limit rating of 5degF, the ApII bag will help keep you warm in all seasons, including winter. Shell fabric is constructed of a 20-denier ripstop fabric treated with a Durable Water Repellent and a non-woven silicone encapsulated fabric. Innovative shell manages condensation, moving moisture vapor outward through down and siliconized barrier; shell repels water and protects the loft of the bag. Lining is a breathable, durable 20-denier polyester fabric with a soft touch. Contoured mummy shape is cut with a fitted hood, broad shoulders and large chest (to accommodate layering of clothes); generous room around knees ensures comfort when turning. Upper side of bag is differentially cut so that the inner layer is smaller than the outer layer; this creates a consistent thickness of insulation and helps prevent cold spots. Lower side is cut in reverse so that the inner layer is larger than the outer layer; this allows down to loft up, filling spaces around body in warmth. Oversize draft tube backing the 2-way zipper keeps the warmth in and the cold out; zipper is backed by stiff, antisnag tape for smooth operation. Anatomically tapered foot box allows feet to rest naturally; it also preserves loft and allows down to drape close to feet for warmth. Oversize collar drapes comfortably over neck and shoulders, sealing out drafts; dual elastic adjusters.

- REI