The Sea to Summit Alpin ApIII was developed for the most demanding expeditions in arctic conditions. Due to the mummy-shaped cut and the anatomically shaped foot box, the heat is kept close to the body without constricting.
The generous cut makes it easy to wear multiple layers of clothing and even snow boots inside the sleeping bag. The vertical chambers above the chest area ensure that there are no cold bridges
and the heat stays in the sleeping bag. This construction prevents the down from slipping sideways on the top. The water-diverting ULTRA-DRY Down treatment protects the down from external moisture and condensation inside the sleeping bag,
so that negative influences of moisture are almost eliminated. processed. The Free-Flow Zip System has a half-sided zipper on the right and a full-sided zipper on the left to give you enough space
to grant for both arms. The waterproof and breathable outer material made of NanoShell guarantees protection from wind and moisture. The particularly tight-fitting hood ensures maximum warmth and minimal regulation effort.

- for extreme cold and demanding conditions in the high mountains
- vertical breast chambers protect against cold bridges
- Tight-fitting hood ensures maximum warmth and minimal regulation
- Double tunnel closure system in the neck area
- large inside pocket
- Including ultra-light Ultra-Sil compression sack
- Filling: 850+ Loft Ultra-Dry goose down (1250 g), Responsible Down Standard (RDS)
- Material: waterproof, breathable NanoShell
- Weight according to the manufacturer: 1870g
- Zip: left
- Regular: up to 183cm in height
- Sleeping bag dimensions: shoulder area: 160cm; Hip area: 142cm; Foot area: 131cm
- Comfort temperature: -29 ° C
- Transition temperature: -40 ° C
- Risk temperature: -68 ° C

(Translated with Google Translate)