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  • Rab - Ascent 700 Sleeping Bag: 17 Degree Down - Azure

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  • Rab - Ascent 700 Sleeping Bag: 17 Degree Down - Azure

Rab Ascent 700 Sleeping Bag: 17 Degree Down

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    • Azure

    5 Reviews


    Lightweight bag for lightweight ascents.

    Rab's proprietary Hydrophobic treatment protects the 650-fill duck down in the Ascent 700 Sleeping Bag from moisture to keep you warm through rainy trips, and the windproof Pertex Microlight shell is surprisingly durable for how light it is. The bag's semi-rectangular shape is roomier than standard mummy bags, and an angled footbox offers extra room so your feet don't feel squished. The Ascent also features an internal collar and a drawcord at the hood to seal out any cold drafts, and a zippered stash pocket that's perfect for headlamps. It comes with a full-length zipper on either the right or left side, and a compression stuff sack for backpacking and a cotton storage sack to keep the bag prime for years.

    • 28°F EN comfort rating
    • 650-fill duck down with Hydrophobic treatment
    • Semi-rectangular shape, angled footbox
    • Pertex Microlight fabric
    • Internal collar and drawcord for hood
    • Left or right sided zippers available
    • Two pounds, thirteen ounces: lightweight
    • Internal zippered stash pocket
    • Compression stuff and cotton storage sacks included
    • Item #RAB001E

    Tech Specs

    30D Pertex Microlight
    650-fill down, Hydrophobic treatment
    Draft Collar
    left, right
    Max User Height
    [regular] 6 ft 3 in, [extra long] 6 ft 6 in
    Shoulder Circumference
    29.5 in
    Hip Circumference
    25.5 in
    Foot Circumference
    19.5 in
    Bag Length
    [regular] 7 ft 2 in, [extra long] 7 ft 6 in
    Fill Weight
    [regular] 24.7 oz, [extra long] 26.3 oz
    17 F
    European Norm Comfort Rating
    28 F
    European Norm Lower Limit Rating
    -17 F
    Stuff Sack
    yes, compression
    Storage Sack
    yes, cotton
    Claimed Weight
    [regular] 2 lb 13.5 oz, [extra long] 2 lb 15 oz
    Recommended Use
    backpacking, camping
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

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    Very well designed, warm, and comfy

    • Familiarity: I've used it several times

    I'd been looking for an all around winter bag for a while to complement my fairly heavy but luxurious Montbell stretchy down hugger.

    Where this Rab bag really stands out is in its design. The zipper doesn't pinch easily (you don't want to deal with this when it's cold, dark, and you're tired) which makes those 2AM excursions outside the tent to go pee less nerve-racking. The warmth is pretty good: I'd feel comfortable in this down to 10F or so if I were sleeping with some layers on. But then again, I tend to be like a furnace. Comfort is solid. The material feels good against your skin and the baffling does let you wiggle around a bit. They've also done a great job at sealing the bag against drafts: the hood and collar do keep your neck nice and warm.

    All in all, definitely recommend it. Rab is one of a few brands that seems to always test their products thoroughly before launching them and it shows.

    Worth it!

    • Familiarity: I've used it once or twice and have initial impressions

    It was hard for me to spend this much money on a sleeping bag, but advice from wise friends prompted me to finally invest in something I'll actually be comfortable in. This bag had the right balance of low weight, warmth, and loft for what I wanted, and I'm really impressed with how roomy it is for a bag that packs down so well. The ability to cinch the neck down to retain heat is a really nice touch, and from what I've seen so far this bag seems versatile and very easy to pack up.

    Hand Filled in Derbyshire

    Sleeping bags are firmly where we started and they remain a core part of our range to this day. Back in the 1970's when Rab Carrington was making sleeping bags in Patagonia, he probably didn't imagine that 40 years later sleeping bags with his name on them would be used all over the world in some of the most beautiful yet hostile environments.

    To this day, we hand-fill our down insulated sleeping bags at our factory in Derbyshire, UK. This allows us to know for definite that, by the time our bags reach our customers, they have never been compressed or stored in a way which could be harmful for the down inside. By filling the bags in house, we can be completely sure that every down sleeping bag that leaves our factory will arrive to our customers in the best possible condition.

    Warm Bag

    • Familiarity: I've used it several times

    Has been a great bag after multiple uses, used first time in 20 degree F. and was not cold at all. I am 6'3" and bought the extra long. I fill the extra space at the bottom of my bag with a jacket to fill up the extra space. There is enough room to sleep on my side, bit of restless sleeper. Packs down small. Unfortunately I lost the compression bag early on, but took a sack from another bag that is small with cinch top. I would recommend to a friend.

    Rab Hydrophobic Down

    In the early days, Rab Carrington built his brand around down insulation, and we still see down manufacturing as a core part of the Rab brand today.

    All of our down insulated products are filled with the highest quality Hydrophobic Down, developed in conjunction with Nikwax. The hydrophobic treatment is applied at source and is seen as the next step in our progression in down manufacturing.


    • Familiarity: I've used it several times

    I love this bag! Warm, packs down, good fit, hood fits snug. I'm tall so I bought the men's and the length is great! I slept outside at about 9,000 feet and was wind/moisture resistant. Also used it at about 10,000 ft and stayed warm on cold nights - but not too warm. It's tough and has continued to hold up well! Excited to get this out on many more adventures!

    Where did u get the shoulder/hip/foot circumference of 29.5/25.5/19.5 inches? Do they make sense to u?

    Most adults have a waist size (circumference) greater than 29.5 inches. I think these are diameter (width) measurements, which makes it difficult to compare to standard sleeping bag measurements (and multiplying by Pi doesn't give reasonable dimensions either). Similar problem with Rab giving overall bag length instead of user height bag is sized for.