Designed to tour, destined to send.

With its light, powerful build and sport-utility dimensions, the K2 SideStash Alpine Ski brings the ruckus to any terrain, then laps back up for more. Hybritech sidewalls, All-Terrain rocker and a beefy waist make the SideStash a reliable charger inbounds or out, blowing powder and crud fields to hell and billy-goating tight chutes all in the same tour. Lightweight aspen and paulownia in the core keep you fresh for the next skin up.

  • Hybritech combines vertical sidewall construction underfoot with cap technology in the tip and tail, for an optimal mix of power, weight, and toughness
  • Metal laminate sandwich provides a damp, stable ride at high speed in sketchy conditions
  • All-Terrain rocker offers 70% traditional camber for powerful turns, with 30% rocker for flotation and stability
  • Removable tip and tail rivets accept K2 custom pre-cut skins (sold separately)

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Here's what others have to say...

How big should I go? I'm an aggressive...

How big should I go? I'm an aggressive skier at 6 foot 1 inch and 200 pounds. I'm going to be using the skis as touring and as backcountry skiing. should I go with the 181 or 188 cm? Thanks

Responded on

Write your answer here...I'm 6"1', 190 and went with 188. You can push them when you want and not worry about a thing.

5 5


I'm 47 year old advanced skiier. I recently tried out a Sidestash while skking @ Alta. This Demo motivated me to purchase a new pair. I normally ski a Dynastar Pro Rider which I love, however this Sidestash is truly unreal.Yesterday at Sugarbush Vt. the summit had 6-8 of fresh with winblown and hardpack. The Sidestash was super stable as I charged the windblown areas of powder and hardpack. With a three foot dump earlier in the week the moguls were soft and the sidestash was quick and just awesome to turn.The true test was in the woods and these skiis were burly and yet they just love to turn. If you have to many skiis, stay away from a Sidestash demo as it may be dangerous to your piggy bank!

Unanswered Question

I?m deciding between the Sidestash, or...

I’m deciding between the Sidestash, or Coombacks, and am open to other suggestions. I'm looking for something that has early rise tip, is good in crappy conditions, and fun in powder.

I'm 5'8'' 155. I ski Janaks (99 underfoot) with hammerheads and want something with early rise tip. I’ll keep the Janaks around for the resort or icy days.

I end up in chop, heavy west coast snow, hard snow, and crust more than powder, so i want something that does well in those conditions. But I want to be able to have a lot of fun when I'm in powder.

I liked the surfy feel of Justices, but they were squirrely in hard snow. Historically I've liked damp skis like gotamas, but that was on A/T gear.

I'd say I'm leaning toward the Sidestash, (maybe a little more fun in soft snow?) but wonder if Coombacks might be more versatile and easier on the knees. I'd love input on these skis or other suggestions, thanks.

Just blew the Dynafit toe piece off one...

Just blew the Dynafit toe piece off one of my Coombas. You can see where theh top skin is delaminated from the ski. On investigation, I find MANY people have done the same. Looks like the Coombas are soft on top. Is the sidestash any tougher on top?
If this happened any further up the coulior I was skiing, I wouldn't be eher eto write this

Responded on

FYI, I just blew my Dynafit toe off of a K2 Hardside, which supposedly has the same construction as the Sidestash. Not sure if this is a common problem but figure it's worth adding to the debate.

Responded on

I had the same problem with my sidestash... the first time it was last year after a few runs at hard condtions... i got a new pair from my dealer, complete new... this year, after 7 runs in best powder it happend again, the top skin was completly delaminated... for me it looks like a general problem with dynafit bindings, because a friend of me has the same problem with his coomba ski

5 5

5+ Stars! WOW!

Hands down this is the most versatile ski on the market today! The SideStash is truly a quiver of one - believe what others have written about this amazing ski. I initially had my doubts, but they were quickly laid to rest...

Firstly, this ski makes difficult snow (choppy, wind-affected, re-frozen chunks, etc.) easy to ski - very damp and stable, yet super quick and surprisingly easy in any turn radius (short or long). It absolutely kills it on groomers, and has better edge hold than my Head Monster 88s. Powder and crud are an absolute joy to ski! The SideStash is also so confidence inspiring, that you will find yourself venturing into steeper, more technical terrain - it's the perfect tool for whatever the western mountains can dole out!

I'm 5'9" and around 185lbs, and the 181cm SideStash is the perfect size! Get it while you can, and maybe get another pair as backup...believe the hype - it's true!

Unanswered Question

I am 5'7" and 155lbs. Looking to use this...

I am 5'7" and 155lbs. Looking to use this ski for powder in tight trees as well as glades. Ski mostly off piste and am constantly looking for that hidden powder stash. With the tight trees I can get into I am considering the 167cm, but will I get sufficient flotation with the shorter lenght? Probably use Barron's. I ski Colo and Utah

5 5

Good for Hardpack!

Got these as my hard pack and variable conditions for my current Chamonix trip. The rocker is fine on the steep firm conditions. To me these skis are not that heavy with the metal layer in them. Nice to have the precut skin option. Not a big fan of flat square tails since I have been used to twin tips for so many years, so a bit to get used to on the firm steeps. Overall a great daily driver, more for firm snow in my world.

6'2, 190 pounds. Current setup is 174 Mt...

6'2, 190 pounds. Current setup is 174 Mt Bakers with Freeride AT bindings. Debating between updating to Sidestash or Coombacks.

Any comparison observations between the Mt Bakers and Sidestash / Coombacks?

Responded on

no experience myself, but I'm quite sure Lou Dawson at will know a good few thing about those boards you mention.

5 5

Great Ski

I'm a long time local in Breckenridge, CO and I use this ski as my everydayer. Very stable! Not like most K2 skis, which are very soft, this ski has some beef. I do recomend this skis for any advanced/expert skier. Not a ski for beg. or int. I'm 5'9" and 180 lbs, I ski the Sidestash in a 188. I DO NOT recommend this length to anyone who is my size unless you REALLY know what you are doing!!! This is great do everything ski for people in the know.

I already have a touring ski set up but...

I already have a touring ski set up but looking for a charging all mountain ski for an alpine set up. Seems like the K2 Sidestash has a lot of what I'm looking for however, if I'm not using these for touring, is there a better recommendation? I'm 5'9" and 175 aggressive Tahoe skier. Thanks!

Responded on

sidestach is perfect burlier skis like the czar suck for all mountain the sidestash is a good freeride/big mountain ski. the only other thing i'd recommend is the katana which doesn't carve quite as well

5 5

These boards rip!

I was trying to round out my quiver of BD Megawatts for our Wastach big days and K2 Coombas with dnyafits as my backcountry "lites." I demoed the BD Zealots(big burly ski that loves to charge) However, I was ether too weak or too small(5'7 165) to really make quick turns with them. The K2 Sidestash answered by prayers. This ski floats and charges in pow and crud, is nimble in chutes, and can rail on the groomers. I have them paired with Marker Barons so it is not exactly the lightest setup but thats what the Coombas and Dynafits are for. Taking the Sidestash to La Grave and Chamonix next month.

I'm 6'1", 195 lbs, 49 years old, expert,...

I'm 6'1", 195 lbs, 49 years old, expert, 42 years skiing, last 30 telemark, last 10 skiing parallel on telemark gear; Montana, Wyo, Utah, Idaho. Getting back into alpine gear (not touring) for mostly off-piste trees and bowls, but still need a ski that can edge well on packed, groomed, or wind-polished stuff at Big Sky and get me back to the lift.

Right now I'm on Atomic Kongurs 184cm (antique, I know) and have no probs paralleling hardpack or (preferred) POW. Salesman suggested the Coomback, but Sidestash seems like it may be a better fit for me. Thinkin 188 cm.

Any advice out there? Thanks

Best Answer Responded on

The Coomback in a torsion box ski and is slightly skinier, that translates into a lighter, more forgiving ski. The metal laminate construction of the Sidestash has a damper- chargier feel. Personally, I really like the sidestash, for an everyday ski out west where the snow is mostly pow or crud, it has a perfect amount of rocker and that easy turning k2 shape.
Demo them if you get the chance, but if you aren't touring and concerned about weight I'd say go for the sidestash.

Responded on

The 188 is a lot of ski. It is great for wide open non-technical high speed lines but tough to move around if you get into tight technical spots. I'm 6'2" 185 expert skier also. I just skied the 188 for a year and loved it but my knees did not love it when I got into tight technical situations.

Responded on

6"4, 205 lbs & have demo'ed the Coomback, Sidestash & BD Verdict in 188 & 181 at Mammoth, Squaw, Sugarbowl and Bachelor. Honestly, felt the most comfortable w/181cm in trees and narrow areas. The 181cm was especially forgiving in crud and bumpy hardpack. I concur w/Bernard re:knees & 188cm. Really like the Coombacks, but after time on the Sidetrack & Verdict, I'm leaning more towards one of them.

whats the big difference between the...

whats the big difference between the backlash and the sidestash?? ..except the dimensions! Is the sidestash as easy for tele??

Best Answer Responded on

Obviously the dimensions make these skis significantly different, The backlash is much much lighter and the sidestash has a stiffer flex. Probably not as 'easy' for teleing although still doable and probably better if you are going to spend most of your time in soft snow.

How does the Sidestash stack up against...

How does the Sidestash stack up against the Hardside? In the powder, the crud and the groomed?

Responded on

much better float than the hardside much better in the crud than the hardside. pretty similar on the groomed

I'm an ex ski patrol and grew up skiing &...

I'm an ex ski patrol and grew up skiing & racing but now ski mostly free hill on both backcountry and at the ski areas. I love to make a lot of turns in all snow conditions on my very old tele set ups. I am looking to upgrade and was looking at either the k-2 Sidestash or the Volkl Gotama with Hammerhear bindings. What would be your thoughts and what length. I'm 5' 10 and 175 lbs.

Best Answer Responded on

Have the Side Stash with Hammerheads...awesome. Do it

5 5

Demoed this ski yesterday

I demoed this ski yesterday, 181 w/ hammerhead bindings at Mammoth Mtn., I'm 5'-10" 155lbs with Garmont Voodoo boots. The conditions were very light and fast hard pack snow, bumps, and crud. It took a few runs to get the true feel of this ski. By the end of the second run I felt like I could throw this ski anywhere, and even do some great GS style turns (even with the 108 underfoot). The rockered tip seemed to make the ski feel and ski shorter than it actually was (although they still do run a few cm longer, so I would say the 181 was closer to a 183 or 184). I don't like crud or bumps but it seemed to handle it fine, the ski was a bit long for my liking in these conditions, I had to slow down and muscle the ski quite a bit more to keep a rail. I really wish there was some powder to be had, but I could only imagine the width and rockered tip handling it with ease.

Overall this ski seemed to be very good. Probably my favorite ski that I demoed yesterday.

5 5

Love this ski

My stats: Age 54, 6'3", 240 lbs., advanced-expert, ski the Pacific Northwest, I am sking the K2 Sidestash 188 cm. Fantastic ski on everything but boilerplate. Skis the powder as well or better than my Rossi S7s. Bought these boards this year and I can honestly say that I am having the funnest ski season in the last 15 years. These boards absolutely rock. Way to go K2!

5 5

Defines Versatility

Had these in a 188 and they absolutely rocked. Probably the best all around ski I've ever ridden. Rocker and "powder tip" profile make them float over pow and crud but the shorter sidecut length allows them rip hard snow and bumps. You can really feel the layer of metal in these, making them much more stable at speed and on hard snow versus the coomback layup. Aspen/pulowanaia core is my favorite from K2, light and snappy! My only issue is I wish K2 would put the fatty base and edge on these. If you are considering these don't think twice, get em'.

Defines Versatility

I'm 5'7", 175 lbs, advanced skier, 55 years...

I'm 5'7", 175 lbs, advanced skier, 55 years old. The ski shop is recommending 174cm length for me. I also ski Volkl Mantra 170cm and it feels a little short in deep powder but good on everything else; the next size up felt like too much ski. I prefer to make turns vs. high speed in powder. Do you agree on the 174cm length for the SideStash?

Best Answer Responded on

I definitely think it sounds like a good recommendation, considering your size/weight, ability, and how you feel on the Mantra's. Going up 4cm from your Mantra's equates to less than an extra inch on either end of the ski, so you probably won't notice it too much. These are a bit wider than the Mantra as well, so with the extra length and width I think you should have some nice float in the pow.

Unanswered Question

How do these compare to the volkl gotama,...

How do these compare to the volkl gotama, or volkl katana?