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Scarpa Alien RS Touring Boot 26.0

Is it Scarpa's new race boot? Or is it the tool that fast and light ski mountaineers have been asking for for years? It's an alien, so who knows, but we're stoked on this boot for both.

Coming in lighter than the previous non-carbon Aliens, it is certainly a race boot with a one lever transition and fully freepivot cuff. But the skiability sees serious improvement, hence the RS tag. The cord system is still used in order to keep weight down. However, the cord loops around two grabs on the upper cuff, giving you essentially four cords across the shin instead of one. The 3D Lambda Torsion Frame transmits power from the upper cuff to the ski in an incredibly stiff yet progressive way for a boot that walks better than hiking boot. And the cuffs themselves get an infusion of carbon fibers into the Grillamid plastic to improve the torsional rigidity and power without adding weight

We were fortunate enough to grab a prototype pair of these last season and put them through the wringer. We raced Aspen's Power of Four, skied an 18" spring powder day in steep terrain, and pounded out inebriated laps on slush bumps at the local hill's closing day (don't judge...). The Alien RS performed well in all and is capable of driving a relatively big ski in the process.

It's a Scarpa, so you get the full Vibram UFO RS sole and an Intuition liner stock. Intuitions are the gold standard and this rendition keeps up to that bar. The liner has a Velcro strap with attachment points at either side of the upper cuff and where it crosses the tongue to keep everything in place while in walk mode and prevent blisters. Forward lean is adjustable at 7   / 9   / 11   / 13  . The Boa closure system snugs the foot up nicely without the weight penalty of a buckle.

These boots will be on ski mountaineers world-wide this season and we'd be stoked to get you in a pair before they sell out, which is a forgone conclusion.

Specs Product Details
Weight 890g (27)
Flex 95
Last Width 99mm
Material Carbon infused Grilamid
Forward Lean 7, 13 degrees
Cuff Articulation 72 degrees
Sole Vibram
Buckles 1 Buckle plus Boa cable forefoot adjustment
Binding Compatibility Tech, AT
Manufactuer Warranty 1 Year

Is renting right for you?

Rentals are a great way to lower the cost for your first time trying the sport and narrowing down what you are looking for. We rent both super light fitness setups for resort uphilling as well as all mountain skis better for backcountry and soft snow.

There are a few limitations of renting. Most importantly the demands on your feet for walking uphill in a hard plastic require a level of boot fitting and customization that is impossible to get in rental boot. This could set you up for some discomfort. There are too many models of skis out there to try them all, so demoing to buy has become impossible. In the end, once you are hooked for the sport, working with our backcountry experts will be the most efficient and least expensive way to get dialed in the perfect setup for you.


Customer Reviews

Based on 5 reviews
Scarpa Aliens – Awesome Boots!

I can’t say enough about these boots. They weren’t even on my radar when I was shopping for my first uphill setup, but I’m thankful that Cripple Creek recommended them because they are AWESOME. Light and comfortable on the way up yet stiff and secure on the descent – I couldn’t ask for more.

Julian Smith
Scarpa Aliens RS

Awesome boots. Only weird thing is where the leash attachment is located; way back and up high. Cripple Creek totally rocks!

Favorite boot ever

This boot has done so well for me that I have a tough time putting anything heavier on. I will use it with a ski up to 100mm underfoot and it can definitely handle it.

Bill B.
Game changer boots

Just used the Scarpa Aliens RS boots for a 6-day spring tour on Oregon’s volcanoes. Fantastic ankle flex in walk mode, just like a hiking boot. And so light! I had discomfort with toe jamming in a size Mondo 30 with a narrow 11-11.5 foot even after two rounds of heat molding with toe cups. Not sure why the Intuition liners didn’t loosen up around my big toe. Otherwise, my feet were comfy after 6 long days with the boots out of the box. The one- step upper buckle system works like a dream, providing downhill boot stiffness for a collective 25k of vertical on spring corn on BD Helio 95s.

Bill Birchard

Jessica Young
The Best Boots

These are seriously some of the best touring boots I’ve tried... they are lightweight but don’t compromise on performance to ski steep and technical terrain.