Sea to Summit Ascent Down Sleeping Bag

Sea to Summit

$668.00

Temp Rating:

-1C|30F -9C|15F

Size:

Regular Long

Variant

1% for the Planet We'll donate $6.68 from this purchase to environmental charities.

Features

RDS-certified, 750+ fillpower goose down with a non-PFC Ultra-Dry Down treatment to stay drier in damp conditions
Free-Flow Zip System offers excellent temperature regulation and multiple sleeping bag configurations
Thermally-efficient, more relaxed mummy fit, room in the hood to fit an Aeros pillow and the option to zip couple with a compatible Sea to Summit Women's bag to deliver space for two comes standard
Lightweight 20D recycled nylon shell with a non-PFC DWR finish to protect against wind and moisture and a RCS-certified 20D recycled nylon liner for greater comfort
Box baffle construction throughout with vertical baffles in the torso to minimize down shift and maximize the retention of warmth
Sea to Summit Guarantee is offered for the Lifetime of this product

Specifications

WEIGHT

-1C|30F R: 847g
-1C|30F L: 944g
-9C|15F R: 1.1kg
-9C|15F L: 1.2kg

CERTIFICATION

RDS - 883003
RCS - 1114661

MATERIAL

Shell: 100% Nylon
Lining: 100% Nylon
Fill: 90/10 Goose Down
Stuff Sack: 100% Nylon - excluding trims

INTERNAL CHEST CIRCUMFERENCE

R: 158cm
L: 168cm

INTERNAL HIP CIRCUMFERENCE

R: 146cm
L: 156cm

INTERNAL FOOT CIRCUMFERENCE

R: 119cm
L: 129cm

PACKED DIMENSIONS

-1C|30F: 13.5 x 19.5 x 34cm
-9C|15F: 15.5 x 22.5 x 41cm

RECOMMENDED USER HEIGHT

R: 185cm
L: 198cm

FILL WEIGHT

-1C|30F R: 300g
-1C|30F L: 343g
-9C|15F R: 540g
-9C|15F L: 617g

INSULATION TYPE

RDS-certified, 750+ fillpower goose down with a non-PFC Ultra-Dry Down treatment

COMPRESSION SACK VOLUME/ASTM F1853-11 COMPRESSED VOLUME

-1C|30F R: 8L/5.5L
-1C|30F L: 8L/6.4L
-9C|15F R: 13L/7.5L
-9C|15F L: 13L/8L

Sea to Summit tests all of its sleeping bags according to the ISO 23537 standard. This test presupposes that a sleeper is

dressed in expedition-weight base layers
wearing an insulated cap
using a sleeping mat with an R-Value of 5+

The ISO test produces three temperature ratings, two of which Sea to Summit publishes as above in these specifications.

Sea to Summit publishes the temperature ratings provided by the ISO-certified lab - the figures are not rounded down or altered.
this rating is a guideline, not a guarantee

Factors that can affect performance include air humidity and how well the down is distributed in the baffles (the latter involves vigorously shaking the bag prior to use)

Other factors that affect performance is the physical condition of the sleeper, levels of hydration and fatique.

Sea to Summit Ascent Down Sleeping Bag

Experience the ultimate versatility with Sea to Summit's Ascent Down Sleeping Bag. When facing colder temperatures, simply adjust the technical hood, zip up the draft-tube protected zippers, and let the 750+ Ultra-Dry Goose Down keep you cozy. In warmer conditions, take advantage of the Free-Flow Zip system to unzip in various configurations for optimal ventilation or even open it up flat and use it as a quilt on those extra warm nights.

This three-season backcountry bag is one of the few on the market, making it a must-have for all your hardcore adventures. And, for those downtime moments at camp, just snap the shoulders and unzip the footbox to wear the Ascent as a cozy jacket. Don't let your adventures be hard all the time - let the Ascent make them a little easier.