Sea to Summit Altitude Women's Sleeping Bag
Features & how to pack away
Details & Specs
Adapt your sleeping set up according to the weather conditions, with the versatile and reliable Altitude At2 Sleeping Bag from Sea to Summit.
This sleeping bag is wider at the hips and narrower at the shoulders for a women’s specific fit and features a rectangular design which is roomier than a mummy shape. To keep the weight and packed size down, the shell and lining are made from light breathable while the vertical chest baffles help prevent cold spots and down migration. The fill is RDS certified 750+ ultra-dry down which provides superior insulation, and the foot area has THERMOLITE synthetic panels to prevent your ankles and feet getting cold.
With a -10°C comfort rating and -17°C lower limit, the Altitude At2 can be used for your cold-weather expeditions. It’s easy to get extra ventilation on a warm night or keep cosy when the temperature drops as this bag has a Free-Flow triple-zip design. This means there’s a half zip on the left to free up your arms or fold it down, and a full-length two-way side zip and separate foot zip on the other side so you can use it as a quilt. When it’s chilly, just close up the zips and burrow down into the generously sized hood.
It’s also simple to keep your phone or headtorch accessible as the Altitude has a large internal pocket for valuables. You’ll be prepared for changing weather conditions, with the comfy yet adjustable Altitude At2 Sleeping Bag from Sea to Summit.
-10°C comfort rating, -17°C lower limit
Tapered rectangular women’s specific design with wider hips and narrower shoulders
Free-Flow triple-zip design for adaptability
Half zip on the left and full-length two-way side zip and separate foot zip
Super light nylon shell and lining
High-quality RDS certified 750+ Loft ULTRA-DRY Down for insulation
Oversized draft tubes prevent body heat escaping
Panelled footbox and 3D hood
Extra down overall and THERMOLITE panels under the foot area
Vertical baffles over the chest to prevent cold spots
Large internal security pocket
Storage cell and a lightweight compression bag for storage
How does this compare to the Flame IV? Which would you recommend for a cold sleeper for winter camping, but also year round use? Does this bag have condensation issues like the Flame?
Erica - Canberra, ACT(2 years ago)
The Altitude At2 and Flame Fm4 are both excellent bags, with slightly different features. They both have a comfort temperature of -10'C, so in that regard, you'll experience the same level of warmth from both bags. The Altitude has a little more flexibility with space and zipper configuration, so will be a little more comfortable, and easier to open up, or half-open up for year-round use.
In regard to condensation, there will always be the possibility that condensation will form on the top of a sleeping bag in very cold weather, due to the very nature of condensation and the relationship between body temperature, and tent temperature. Both bags feature ULTRA-DRY Down™ to help reduce the impacts of this moisture on the down.
Leece - Snowys(2 years ago)
Which of the Sea to Summit sleeping bags would be best for a 170cm tall regular size woman camping at Perisher or Thredbo in NSW 1 answer
Looking for a sleeping bag to use when camping at Perisher or Thredbo in NSW for a 170cm tall regular size woman
Margaret - Halton(3 years ago)
This sleeping bag rated at -10, if used with a complete sleep system - insulated mattress, thermal liner and thermal pillow plus a 4 season tent should help to keep you nice and toasty. Obviously, there are many factors that come into play such as if you're a cold or hot sleeper, sleeping attire, weather conditions etc that might affect how warm you'll stay, but this will certainly go along way in helping to keep you warm.
Susie - Snowys(3 years ago)
Regular vs Long1 answer
Hi, I'm 173cm tall and wondering whether I'd be fine in the regular size bag or need to purchase the long?
Mel - Sydney(3 years ago)
Based on the recommended maximum height of 170cm for the Regular I would suggest going for the Long. However Lauren from the video is 171cm and she indicated that she felt like she had a fair amount of wiggle room, so you might be ok in the Regular length if you sleep curled up a bit.
Leece - Snowys(3 years ago)
would this be suitable to use for snow camping in areas such as mount Kosciuszko?1 answer
Im looking for a sleeping bag that isn't a mummy shape but still has enough warmth for snow camping.
celeste - Wodonga(4 years ago)
The Altitude At2 has a comfort temperature of -10, so as long as you're sleeping on a well-insulated mat in a 4 season tent then we'd be pretty confident that you should be ok in this bag. It would be worth checking the weather conditions though, as I know you can end up with pretty cold nights there in winter.