• ASCENSIONIST PACK 45L, Drifter Grey (DFTG)
  • Ascensionist Pack 45L,
  • Ascensionist Pack 45L,
  • Ascensionist Pack 45L,
  • Ascensionist Pack 45L,

Patagonia Ascensionist Pack 45L

C$ 125.00 - C$ 104.00
C$ 125.00 - C$ 104.00
48000 #48000
  • White
    C$ 125.00 C$ 209.00 WHI
    White (WHI)
  • Drifter Grey
    C$ 104.00 C$ 209.00 DFTG
    Drifter Grey (DFTG)
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Ascensionist Pack 45L,
Ascensionist Pack 45L,
Ascensionist Pack 45L,
Ascensionist Pack 45L,
45 L (2,746 cu in)
Patagonia's Ascensionist Pack 45L is available in two sizes, S/M and L/XL. For the best fit, please download our measurement guide and follow the instructions. Download Ascensionist Pack Measurement Guide
Additional Information

Whether you’re trying a route on the South Face of Denali or heading into the Karakoram, when conditions dictate a need for additional gear or an overnight kit, this backpack expands to handle the load.

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One hundred and one challenges stand between you and the summit ice. Your pack shouldn’t be one of them. For moving fast in Patagonia, Alaska or the Karakoram, this function-driven pack carries the loads of a multiday ascent without interfering with efficient movement. It features an integrated, asymmetrical spindrift collar that opens wide and closes in a single motion for fast packing. A secondary collar protects your gear from ugly weather, allows serious overstuffing and holds gear securely when the pack is hanging at belays. The removable frame sheet, made from a lightweight aluminum rod and covered with mesh, provides support for weighted loads and moves with you as you bend and flex. Ergonomic shoulder straps (with load lifters) match your torso’s contours for 24-hour comfort, and the padded hip belt is removable when you prefer a simple webbing belt. Four rows of exterior daisy chains provide lashing options for a rope, helmet and pad; ice tools attach via an integrated buckle and tool pocket. Other details include compression straps to carry skis and cinch down loads, an asymmetric profile for elbow clearance and a zippered pocket on the lid for quick access to small essentials. Made from lightweight yet durable 6.25-oz 210-denier nylon double ripstop and 6.05-oz 400-denier nylon ripstop, and lined with a 1.8-oz 40-denier nylon double ripstop with a polyurethane coating and silicone finish and 200-denier polyester.
  • Lightweight, bomber, tear- and abrasion-resistant nylon ripstop
  • Asymmetrical spindrift collar opens wide for easy packing; drawcord simultaneously cinches collar and closes lid for a secure seal; additional spindrift collar deploys to protect your gear when you’ve overstuffed your pack
  • Aluminum-stay frame with tensioned mesh center gives pack structure and helps to support heavy loads, but can be removed for lightweight pursuits
  • Padded hip belt can be removed to create a simple webbing hip belt
  • Center sheath ice-axe carry system accommodates a wide assortment of axes
  • Daisy chain on front panel provides lashing options; compression straps on sides help manage different size loads; zippered pocket on lid offers easy access to small items
  • Available in two sizes: S/M and L/XL
  • Body: 6.25-oz 210-denier 100% nylon semi-dull double ripstop and 6.05-oz 400-denier 100% nylon ripstop. Lining: 1.8-oz 40-denier 100% nylon double-ripstop with a polyurethane coating and silicone finish
  • 1020 g (35.98 oz)
  • Made in the Philippines.

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Ascensionist Pack 45L is rated 4.1 out of 5 by 18.
Rated 5 out of 5 by from Perfect travel bag Travelled 2 weeks through Spain and Morocco with this pack (including by train, boat, and plane) and it was so incredibly comfortable the whole way through. Fits plenty but sits extremely comfortable on the back. Also love the top zipper compartment where a book and power bar always live.
Date published: 2017-01-24
Rated 3 out of 5 by from Great ultralight pack, not durable I've had this pack for 1.5 years. I've use it primarily for winter mountaineering, climbing, and backcountry skiing. Today I noticed that aside from the holes in the body of the pack, the aluminium frame had burst through the inside of the back panel and it's no longer distributing the weight of the pack properly. As a winter mountaineering pack it is perfect. Excellent ice tool carry. Light. Easy to access. Wish it had a hydration bladder opening though. For climbing, it carries the weight of a double rack, rope, food, etc very comfortably. Sometimes I get frustrated if I put something at the bottom of the pack that I need during the approach... but that's not the packs fault. Overall, it works well. As a backcountry skiing pack, it is junk. Definitely no easy access to avalanche equipment or a puffy.. or your water. The ski carry straps are flimsy - my skis are 135/105/125. The skis move around alot no matter how much I cinch them down. My edges have also cut through the pack material and started sawing their way through the straps.
Date published: 2016-12-28
Rated 3 out of 5 by from Excellent for mountaineering, not a generalis pack Five stars for moutaineering/climbing, 2 stars for general use. The pack is incredible for its flexibility and feels great, but is not well designed for carrying skis and is too fragile for rough use. I had many holes in it after just one outing carrying skis see full review at my blog "fresh alpine line"
Date published: 2016-11-15
Rated 4 out of 5 by from THE alpine pack After using this pack now for two seasons I've decided to review it and let you know what I think. First of all this pack is awesome. The size and shape of the 45L is perfect for stuffing a multi days worth of gear for a weekend ascent in the high sierras in winter. It holds everything you need and the gives you the ability to lash and strap extras to the out side. Ice tools, crampons, piolet all fit nicely on the outside and the design keeps the points safe. Also the loops on the outside let me strap any extras that may not fit inside if it's going to be a longer than normal trip. The removable frame is a super nice feature, I've taken this out for single day summit pushes and leave it in for the multi day approaches. I have not removed the waist strap yet seeing as how this is how I prefer to carry the weight of my pack, but the way this waist belt cinches isn't very ergonomic, but it does the trick. The closure system is easily the best I've ever used, mega easy even with gloves on. The weight is insane!! Or should I say the lack there of. Crazy light!!! Things that could be improved, there is no hydration system, not even a port for a hydration tube. I cut a small hole in the side of mine and it works ok. But something sewn in would be better. Next the interior overstuff spindrift collar is a little weak. Mines starting to tear at the seam along the cinch cord. Overall an outstanding pack.
Date published: 2016-09-18
Rated 5 out of 5 by from Love the Unique Design I like this pack because of the unique, functional way this pack was designed. I got to borrow a 35L pack for ice climbing last winter, and was certainly intrigued by the closure system. I picked up a 45L this spring, and although I haven't been able to use it in the winter yet, I've used it to carry rock climbing gear, and hiking. The top opens plenty wide, so its not too hard to access gear when the pack has a day's worth of items in it. For just a day's worth of climbing gear, there was plenty of room. I find the pack comfortable when packed gear. My biggest pet peeve with most packs is a lacking hip strap, but this pack had plenty of padding and rested comfortable all day. I also like how it was tall, and fits well the entire height of my back; there were no spots of excess pressure or friction for me. Lastly, I love the closure system. I find it incredibly simple to use, yet it still does a great job securing gear and keeping it covered. Its unique, yet I still think it is more functional and versatile than zippers and buckles, especially with gloves. In short, this pack is comfortable, simple, and functional, and will try to remember to update this in the winter with more feedback.
Date published: 2016-08-12
Rated 4 out of 5 by from Works as a travel backpack I didn't buy this for its' intended purposes, but it still works well for me. I wanted something lightweight that would work for carry-on only travel. I used this for a 10 day trip to Maui and everything I needed fit fine, including a snorkel and fins. It worked well carrying without the frame since I had my fins inside. The sideways zipper on the top lid is a brilliant design. Didn't realize it until I was using a different pack and dumped all the pockets' contents on the ground. One feature I would like to see added is stretchy side pockets for water bottles, trekking poles, etc. It isn't very quick getting in and out of this bag for water, and there is no hydration port. The foam on the shoulder straps and hipbelt is also very stiff, but it might just need break in a little more. The one major problem I had, and reason for taking away 1 star, was the hipbelt and the way it tightens. You have to pull the straps out from your midsection towards your hips, which just isn't ergonomic. Most higher end climbing/backpacking packs these days have you pull the other way, and it makes adjusting much easier and less awkward.
Date published: 2016-01-11
Rated 2 out of 5 by from Wanted to like this pack, Not durable I was really impressed with this pack at first, it carries so well! When I first loaded it up and put it on, It felt like all the weight in the pack was driving me forward, not pulling me back. However, within a couple months, the frame broke right below the swively joint thing, I contacted patagonia and they sent me a new one. The new frame lasted only a few weeks before breaking in the same place, so I resigned myself to going frameless. The pack still worked well, but it was not as comfortable as before when carrying more than 25lbs for an overnight climbing trip, or for hauling water jugs uphill in training. now after 3 months of hard use, the bottom edge of the hipbelt padding is "rolling" up and out from under the edge of the webbing inside of padding, and the webbing is cutting directly into the top of my hipbone! another minor gripe is that the back panel gets very sweaty and clammy in the summer, more of personal thing that a problem with the product, I can see why it would be nice in winter with lots layers on, but over just a base layer its not very pleasant. All in, a good first generation, but the lack of durability in the suspension system is a dealbreaker for me, adding just a few more ounces, such as a frame similar to cilogear packs, and a more beefy hipbelt, would go a long way!
Date published: 2015-10-12
Rated 5 out of 5 by from One of my favorite pieces of gear. I don't really know where to start with this pack, I bought it on a whim in the Vail, Colorado store when it first came out and I didn't use it much at first.. Boy has that changed.. I have had this pack with me everywhere I go now. Another reviewer comments on its durability but I have to disagree. I use this from a day of cragging to up to 3 nights of summer backpacking. This is one of my most burly pieces of gear. The closures, stitching, fit and finish have all held up to the almost daily abuse I put this pack through. Its been thrown in and out of cars, tied between trees as a bear bag, tied to ropes and dragged up gullies and used as a pillow on occasion. One weakness that I've found is the expansion flap. It is a much thinner piece of nylon that I've stuck a nut tool through very easily that has ripped into a bigger hole. Some tenacious tape and superglue have done the trick to patch that hole though. The closure system I have to say took a little getting used to, but after a few uses I have grown to completely love it. The top pocket is great for storing things that you need to get to very quickly like bars, maps or a camera. One thing I will note: when you have the bag completely loaded full and you want to put something in the top, or take it out, you have to loosen up the main closure strap to take pressure off of the top. The simplicity of this pack could probably turn people off of it. It lacks side water bottle pockets, any kind of airflow options on the back and a hydration sleeve. One zip pocket on top and one main compartment. Thats it. I would be lying if I said that didn't take some getting used to. You really have to think when you pack, so you're not stuck out in the rain getting your shell out from underneath a sleeping bag or a full rack of climbing gear. All in all I have to call this one of my favorite pieces of gear. It goes with me on everything from a day hike, a 2 day climb up Mt St. Nicholas in Glacier national park to dirtbagging in indian creek, Moab and multipitch climbs in red rocks. Good job Patagonia
Date published: 2015-08-20
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