The Perfect Alpine Rucsac

Article by Andy Kirkpatrick
Monday 24th August 2009

In order to understand what creates 'the perfect Alpine rucksack', we must first understand what we actually want such a product to do, because ‘Alpine climbing’ can mean many things. Alpine climbing should not be confused with ‘Alpine Style’ as this is more often than not heavy weight, describing the transplantation of the Alpine ethos (ground up, on sight) to a route that does not appear to lend itself to this approach, such as on a mountain in the Greater Ranges. Alpine climbing is climbing with an absolute minimum of equipment, often replacing gear with experience, toughness and stamina — the user gambling that the speed gained from leaving equipment behind will make its use unnecessary — yet able to cope if this isn’t quite how it pans out.

Big walling in Yosemite: an environment in which an alpine rucsac will often be required. Photo copyright David Pickford / www.davidpickford.com

Alpine climbing can be roughly broken down into four main types:

SNOW: Climbs that can be termed as high treks, penetrating into mountain ranges using glaciers and climbing mountains by moderate snow lines. Examples, the classic routes up the giants of the Alps.

ROCK: Climbing multi pitch routes in a mountain or big-wall environment, requiring both long and short approaches, multi or single day outings. Examples: North Face of the Dru, Geneva Pillar on the Eiger, Cassin on 
Piz Badile.

ICE: The same as Rock but ascending via ice. Examples: North Face of the Courtes , North Face of the Tour Rond , Shroud on the Jorasses.

MIXED: Climbs that involve a little bit — or a lot — of everything. Examples: 1938 Route on the Eiger North Face, Croz Spur on the Jorasses, Dru Couloir.
So when asking yourself the question of what is the best Alpine ’sack for you, you firstly, have to ask ‘what sort of Alpine climbing do I do?’

THE ALPINE RUCKSACK

Manufacturers are constantly trying to come up with the ‘ultimate’ Alpine climbing rucsac. Unfortunately they often seem to fail to grasp what is actually required and, perhaps more importantly, what is not needed.

    •    The main problem with designing the ultimate Alpine sack is that the two primary design criteria — low weight and indestructibility — are conflicting. 


    •    The designers who come up with the goods are those who can find the perfect balance between the two — or in the extreme cases sacrifice one totally for the other. 


    •    To begin with you need to know what type of rucksack you’ll need for your Alpine discipline:

SNOW: For 'pure' alpine routes you'll need flexible capacity in the form of an extendible lid. Such a pack should be able to cope with up to a week’s supplies, lightweight bivvy gear, storm clothing and sometimes a tent (45 to 65 litres depending on the quality (pack size/weight) of your gear). The sack needs to balance low weight with comfort, and toughness is not as critical as stability in this category. This kind of low technical / high endurance climbing needs a modern ‘Adventure Racing’ approach rather than the typical take-it-all ‘camping’ approach.

The Arc'teryx Naos 55 is a good example of a sack suited to longer alpine adventures, being waterproof and the ideal size for carrying a small mountain tent along with several days' food and other alpine gear. Click here to find out more about this rucsac.

ROCK: Rock-climbing requires a slimline, stable pack that won’t restrict movement. A 15 to 50 litre sack (size depending on length of route) made from tough fabric and featuring a harness that holds the ’sack close and stable to the body without restricting movement in any way. Two haul loops are a good idea, as well as a double base and removable lid. If the route is particularly hard, just one ’sack can be taken and carried by the second, hauled if it proves to hard to carry while seconding. Weight is important if you’re pushing it but if you’re engaged in lots of chimneying and hauling then it must be balanced with toughness.

ICE: Ice-climbing usually requires a very fast approach, racing the conditions and the dawn to get up the route in time. Weight is very critical, with toughness less so. Again this kind of climbing is best approached in an ‘adventure racing’ state of mind minimizing the weight of everything to aid your sprint up the route.

A climber high on the classic Chamonix ice route, Chere Couloir (TD), on Mont Blanc Du Tacul. On a short alpine ice route like this an ultralight sack is the best option. Photograph copyright David Pickford / www.davidpickford.com

MIXED: A mixed climbing sack must be able to cope with all the terrain above requiring the balancing of several important qualities. It must be tough yet lightweight. It must carry heavy loads on the approach yet feel unrestrictive and unbulky when climbing. Size wise it must have the capacity to carry big loads of hardware, bivvy gear and food to the route, yet can be cinched down once half-packed. This ‘sack can be seen as the Alpine all-rounder — tough, 45 to 50 litres, slimline suspension, the type of sack most Alpine climbers buy.


Q: WHAT ARE THE THREE FUNDAMENTALS OF ALPINE RUCSACS?

A: LOW WEIGHT, DURABILITY, AND SIMPLICITY

    •    The weight of your gear is always important, but when climbing at altitude, or when climbing at your limit, doubly so. Minimizing your load is the primary goal of the Alpinist because this is one of the easiest ways to maximize speed, allowing you to move faster in a potentially hostile environment. 


    •    The difference between a light sack and a heavy one can be over two kilos, so the rucksack is one of the best places to shed some weight. 


    •    Low weight is best achieved firstly by reducing any extraneous features of the pack. Many rucksack designs are given a huge ‘wish’ list of what a sack should have and then set about incorporating all these things into the design. Shovel pockets, ice-axe tubes, crampon bags, daisy chains, everything we see as being sexy and improving the chance that the sack will sell in the shop.


OVER-DESIGN = BAD DESIGN

We are tricked into believing that the heavily featured pack will make our lives easier, where the case is actually the opposite. The best Alpine sacks should have a minimum of straps, patches and gadgets. Don’t worry about losing these bits as you will be served far better by less rather than more, further still a minimalist sack should be cheaper. Many climbers I know are forced to butcher their sacks (often halving the weight) in order to achieve the type of weight they’re looking for.

The best current all round Alpine sacks (such as Karrimor's Alpiniste 35 and 45 and Osprey's Mutant 38) weigh around 35 grams a litre (1.6 to 2 kilos for a 50 litre sack).

 

 

 

 

 

 

 

 

 

 

 

 

The Osprey Mutant 38: click here to find out more about this outstanding alpine rucsac

This weight translates into very good build quality, excellent materials and a very solid carry and they are the current benchmark Alpine sacks. Yet I think perceptions about the acceptable weight of sacks are about to change, especially with the arrival of the Crux and GoLite sacks, with the weight falling to 22 grams per litre for the Crux AK50 (1.08kg) and a staggering 9 grams per litre for the GoLite Gust (560 grams). The Crux sack achieves this by an obsessive eye to detail retaining a good back and tough Kevlar materials and in my mind becoming the new benchmark in this balance between strength and weight. The GoLite Gust on the other hand achieves this insanely low weight by basically being nothing more than a bag with straps on and is dependent on the user understanding its limitations and having gear equally as light to go inside. Strangely enough the Gust seems as tough as the rest — standing up to far more abuse then you’d imagine.

For my money the best sack is the Pod Black Ice, which combines both the old and the new in one bombproof design. Weighing in at 2kgs (37grams per litre) it is constructed from the toughest materials, has bags of reinforcing and a suspension solid enough to carry even the heaviest loads and has every feature you’d want. Yet the best thing about it is that you can strip the thing down to around 1kg (18 grams per litre) making it incredibly adaptable and able to overcome the Alpine sacks impossible design criteria. I know it must seem that I’m always flying the Pod flag, but it never ceases to amaze me one person can get it right so often, when the big companies and their top designers are so often wide of the mark.

 

 

 

The POD Black Ice has been a firm favourite among hardcore alpine climbers for many years due to its brilliantly simple design and good materials: click here to find out more.

A LIGHTER APPROACH TO ALPINE RUCKSACKS

An Alpine sack does not necessarily have to be called an Alpine sack. It may be taking it too far but I once heard a story about Stevie Haston climbing a route in the Alps with a plastic bag tied to his back (he was allegedly sponsored by the Co-Op at the time). But it makes sense that if low weight is your number one priority then you should seek out the lightest sacks even if they aren’t necessarily designed for Alpine climbing.

 

 

 

 

 

 

 

 

 

 

 

The Osprey Talon 33 is a very good example of an ultralight alpine sack, with the small version weighing just 870 grams. Click here to find out more...


The explosion of Adventure Racing has led to several featherweight sacks that are perfect for Alpine climbing. These sacks are also great for fast moving Alpine shenanigans as their suspension is designed for runners and so is very stable and low bulk (the Karrimor X-lite 40+5 is a good example). Salomon, GoLite and Haglofs also make potential cross-over running / alpine sacks.

Important Features:

If we ignore the back system then the most import feature your sack should have is a shock cord ‘crampon’ system. This allows you to carry crampons, axes, ski poles, and sleeping mats externally and securely. If your rucksack doesn’t have one it is easy to rig one up.

 

 The crampon shock cord system is easily visible on the front panel of the superb Khazari 35 from Arc'teryx: click here to find out more about this lightweight alpine rucsac.

A lid pocket is very important, allowing you to have easy access to gear that can’t be carried in your clothing (headtorch, batteries, snacks etc).
Side compression straps (long enough to take a mat without needing unbuckling) or a way of rigging straps is useful and these should be used to carry axes rather than old school axe loops. This way the weight is closer to the body, aiding stability, and with practise you can pull the axe out without removing the ’sack — potentially a life saver. 
A haul loop is very important as this is your primary attachment point when securing it at stances or for hauling. If you’re attempting harder routes where hauling may be a real possibility then try and get (or rig up) a ’sack with two hauling points.


 
SIMON RICHARDSON’S PERFECT ALPINE ’SACK:

"I must come clean up front — I hate rucksacks. They’re always too heavy and become increasingly uncomfortable as I get more tired through the day. My solution is to use the smallest and simplest one I possibly can. No frills — just a bag with a lid and arm straps. My only concession to ‘features’ is a pocket in the lid, loops for the ice-axes and a haul loop or two. Size wise, 30 litres suffices for a two-day Alpine route. There’s enough room to carry a cut down pad, sleeping bag, waterproofs, one spare jumper, stove and food, but no space for anything else which is great because it keeps the weight down. The trick when packing for an Alpine climb is to think carefully about everything you take. If you didn’t use it on the last route are you going to really need it on this one? Speed is safety in the mountains and being fast and nimble with a light ’sack is the answer. My current favourite is a Cuillin 2 from Scottish Mountain Gear. For longer, three or four-day routes requiring a tent I use a Serratus Icefall pack from Mountain Equipment Co-Op. With a 60 litre capacity weighing in at 1.5kg it is the lightest fully featured pack on the market".


HOW LIGHT IS TOO LIGHT?

"Being an Alpine climber who’s a bit too obsessed with the weight of my kit, when I first saw the GoLite Gust sac I had to buy it, especially as I was due to depart for an Alpine style attempt on the North Face of Siguniang in China the following week. The ’sack I had intended to use for the trip weighed in at 1.9kg so by taking the Gust ’sack I would save a massive 1.4kg, which is an awful lot of food. As I stood at the counter paying, the shop assistant expressed some concerns about its long term durability, but at the time I dismissed them, after all it wasn’t as though I was going to have to haul it.

"A week later as I stood at the foot of the steepest Alpine face I had seen for a long time the ’sack did start to look pretty flimsy. Anxiety increased even further when Mick shouted down from the first real pitch that it was too steep and the leader would have to haul. We ended up hauling for about 
14 pitches. In fact, I had nothing to worry about. The Spectra ripstop fabric was very robust and the rucksack’s clean lines along with a bit of careful packing meant it hauled well. The front and rear haul point when linked with a piece of the abseil tat were also very strong.
All in all I would recommend this ’sack for any Alpine route where you need to carry that much kit but just remember to be careful".
- Paul Ramsden 


FABRICS & CONSTRUCTION

On rock and mixed routes a rucksack needs to be able to handle a great deal of punishment — carrying heavy loads to the climb, exposure to abrasive rock, hauling and general ’sack destructiveness. The actual weight of material is not actually all that critical in the short term, with many lightweight ’sacks standing up surprisingly well to this kind of hammer. The main focus has to be on major seams and stress points, where straps are sewn into the body of the ’sack. If thought isn’t put into the ’sack you can end up with shoulder straps ripping out, or major seams coming adrift. The actual weight of the fabric is also less important than people imagine when it comes to the overall weight of the ’sack as this comes more from the tape, zips and gadgets sewn into it.

In the long term, heavier weight fabrics are far better though, mainly because they are stronger and will maintain this strength when they have been zapped with a few seasons UVA, thin rip stop nylon will save grams, but will soon fall below the necessary strengths required in a climbing ’sack once it’s spent a few seasons in the Alps. If low weight is your overriding aim then you need to be aware that this is gained at the expense of the longevity of your sack.

BUYING A RUCKSACK

Try on the sack in a few different sizes, as you would an ordinary walking rucksack, making sure you fill it with some substantial weight first. See how easy it is to extend its capacity if overloaded, stow axes (can you get at them) and attach your sleeping mat. Take your Alpine harness and see how it feels with the harness on. Can you get at your gear still? Have a boulder around and see how restrictive it feels.

SUSPENSION

An Alpine sack must provide enough support and comfort to carry relatively heavy loads from the road head to 
the climb, yet be unobtrusive and minimalist while climbing. Generally the lighter the sack the more basic the 
back system. This requires very careful packing and understanding that you’re going to suffer now for less weight 
and frills later on the climb. On the other hand you may have a real load monster that allows you to transport the kitchen sink (perhaps you’re helping out the guardian of some hut?), but are willing to put up with that extra kilo, bulky hip belt and thick shoulder straps for that bit of comfort. For most of us the perfect back system lies 
somewhere between these camps.

The sacks that allow removal of the belt and frame sheet allow the user to have their cake and eat it (such as the alpine packs by Karrimor, Pod, and Arc'teryx). If you’re looking at a bare bones system make sure the foam is solid and offers good load bearing qualities — not mistaking poor quality design and materials as inevitable drawbacks of a lightweight harness.

CONCLUSION

As usual I’m not going to try and create a 'static concept' of the ultimate Alpine sack because, as I’ve said, it comes down to your interpretation of what you need for your Alpine climbing. Any old sack will do, and there are dozens of good models out there, plus a lot of average ones. The trick is to find out exactly what works best for your chosen adventure.


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