Sale

Sea to Summit

AAC1-R

Sea to Summit Ascent Series - Down Sleeping Bags

 
Type
Size

We accept Afterpay and Zip ($100min/$1000max)

This Series offers the perfect backpacking balance of weight and comfort.

Sea to Summit has now created a women's specific version of the Ascent Series. You can learn all about the new Altitude Series here.

Light, warm, comfortable and adaptable, the Ascent is the sleeping bag of choice for most adventurers, most of the time. Providing more space than the traditional mummy bags, yet retaining the thermal efficiency you need when exploring above the tree-line.

The Free-Flow triple-zip design ensures your sleeping bag has maximum warmth and efficiency when needed and multiple ventilation options when it’s not. The half zip on the right side of the bag provides freedom of movement for both arms, additional ventilation and means the top third of the bag can be folded down as a mini quilt. The full length, two-way left side zip and separate foot zip transform the bag into a full quilt for when the mercury climbs higher than expected.

If it’s warmth you’re after, close all the zips, pull the cord locks tight to drag everything in, and relax in luxurious comfort. The generous allocation of high quality 750+ Loft Ultra-Dry Down ensures great insulation, while the oversized draft tubes prevent your body-heat escaping.

The panelled foot-box and 3-dimensional hood make sure you’re not compressing the down when you’re trying to stay warm. Vertical baffles over the chest section ensure the down insulation cannot migrate or shift to the outside of the bag during sleep, creating cold spots. A side block baffle construction maintains the 60/40 fill ratio, keeping more down on the top of the bag for maximum insulation.

All Ascent Series Bags are compatible to zip together with All Women's Altitude Series Bags.

Size Variation

 Type User Height Weight Fill Weight Chest Hip Foot
AC I - Regular Up to 183cm 860g 330g 155cm 146cm 122cm
AC I - Long Up to 198cm 930g 370g 164cm 156cm 129cm
AC II - Regular Up to 183cm 1100g 550g 155cm 146cm 122cm
AC II - Long Up to 198cm 1195g 615g 164cm 156cm 129cm
AC III - Regular Up to 183cm 1325g 750g 155cm 146cm 122cm
AC III - Long Up to 198cm 1455g 840g 164cm 156cm 129cm


Temperature Rating

Type Comfort Lower Limit Extreme
AC I 2℃ -4 -21
AC II -4 -10 -29
AC III -11 -18 -39

 

EN Rating

The EN13537 is a European standard for sleeping bags that provides three temperature levels to help guide you when choosing a bag.

Comfort: The temperature at which a standard woman can expect to sleep comfortably in a relaxed position. If you are female or consider yourself a cold sleeper, use this rating to decide the coldest temperature the sleeping bag is suitable for. We emphasise the Comfort temperature for our women’s specific sleeping bags.

Lower Limit: The temperature at which a standard man can sleep for eight hours in a curled position without waking. If you consider yourself a warm sleeper, use this rating to decide the coldest temperature the sleeping bag is suitable for. We emphasise the Lower Limit temperature for all our unisex sleeping bags.

Extreme: This is a survival only rating for a standard woman. Between the lower limit and the extreme rating, a strong sensation of cold must be expected and there is a risk of health damage due to hypothermia. This is an extreme survival rating only; we do not recommend you rely on this rating for normal use.

  • Tapered rectangular shape for the perfect balance of space and
    adaptable warmth
  • Super-light 20D Nylon shell and lining fabrics for minimal
    packed size and maximum breathability
  • RDS 750+ Loft ULTRA-DRY Down for superior insulating
    power
  • Vertical chest baffles prevent down migration and cold spots.
  • Free-Flow half right side, full-length two-way #5 YKK left side
    and separate foot zips for freedom of movement, increased
    ventilation and dual-use as a quilt
  • Oversized draft tube with anti-snag materials, prevents heat
    loss through zipper
  • Oversized neck draft tube with a dual adjustment system for
    even cinching and maximum warmth
  • Generously sized hood and dual cord adjustment for maximum
    warmth retention
  • Anatomically shaped foot box allows maximum down lofting,
    minimising heat loss from your feet
  • Large internal security pocket with a flat zipper
  • Includes Ultra-Sil™ Compression Bag for compact storage
  • Zip Coupling: This bag is designed to pair with another
  • Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: DUCK DOWN (Min. 90% Down), Stuffsack: 100% Nylon excluding Trims

Regular

  • Recommended User Height: 183cm
  • Bag Weight: 860g
  • Fill Weight: 330g
  • Internal Chest Circumference: 155cm
  • Internal Hip Circumference: 146cm
  • Internal Foot Circumference: 122cm

Long

  • Recommended User Height: 198cm
  • Bag Weight: 930g
  • Fill Weight: 370g
  • Internal Chest Circumference: 164.5cm
  • Internal Hip Circumference: 156cm
  • Internal Foot Circumference: 129cm

  • Tapered rectangular shape for the perfect balance of space and
    adaptable warmth
  • Super-light 20D Nylon shell and lining fabrics for minimal
    packed size and maximum breathability
  • RDS 750+ Loft ULTRA-DRY Down for superior insulating power
  • Vertical chest baffles prevent down migration and cold spots.
  • Free-Flow half right side, full-length two-way #5 YKK left side
    and separate foot zips for freedom of movement, increased
    ventilation and dual-use as a quilt
  • Oversized draft tube with anti-snag materials, prevents heat
    loss through zipper
  • Oversized neck draft tube with a dual adjustment system for
    even cinching and maximum warmth
  • Generously sized hood and dual cord adjustment for maximum
    warmth retention
  • Anatomically shaped foot box allows maximum down lofting,
    minimising heat loss from your feet
  • Large internal security pocket
  • Includes Ultra-Sil™ Compression Bag for compact storage
  • Zip Coupling: This bag is designed to pair with another
  • Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: DUCK DOWN (Min. 90% Down), Stuffsack: 100% Nylon excluding Trims

Regular

  • Recommended User Height: 183cm
  • Bag Weight: 1100g
  • Fill Weight: 550g
  • Internal Chest Circumference: 155cm
  • Internal Hip Circumference: 146cm
  • Internal Foot Circumference: 122cm

Long

  • Recommended User Height: 198cm
  • Bag Weight: 1195g
  • Fill Weight: 615g
  • Internal Chest Circumference: 164.5cm
  • Internal Hip Circumference: 156cm
  • Internal Foot Circumference: 129cm

  • Tapered rectangular shape for the perfect balance of space and
    adaptable warmth
  • Super-light 20D Nylon shell and lining fabrics for minimal
    packed size and maximum breathability
  • RDS 750+ Loft ULTRA-DRY Down for superior insulating
    power
  • Vertical chest baffles prevent down migration and cold spots.
  • Free-Flow half right side, full-length two-way #5 YKK left side
    and separate foot zips for freedom of movement, increased
    ventilation and dual-use as a quilt
  • Oversized draft tube with anti-snag materials, prevents heat
    loss through zipper
  • Oversized neck draft tube with a dual adjustment system for
    even cinching and maximum warmth
  • Generously sized hood and dual cord adjustment for maximum
    warmth retention
  • Anatomically shaped foot-box allows maximum down lofting,
    minimising heat loss from your feet
  • Large internal security pocket
  • Includes Ultra-Sil™ Compression Bag for compact storage
  • Zip Coupling: This bag is designed to pair with another
  • Shell: 100% Nylon, Lining: 100% Nylon, Primary Filling Material: DUCK DOWN (Min. 90% Down), Stuffsack: 100% Nylon excluding Trims

Regular

  • Recommended User Height: 183cm
  • Bag Weight: 1325g
  • Fill Weight: 750g
  • Internal Chest Circumference: 155cm
  • Internal Hip Circumference: 146cm
  • Internal Foot Circumference: 122cm

Long

  • Recommended User Height: 198cm
  • Bag Weight: 1445g
  • Fill Weight: 840g
  • Internal Chest Circumference: 164.5cm
  • Internal Hip Circumference: 156cm
  • Internal Foot Circumference: 129cm