An optimal uphill-to-downhill ratio.

It's hard to say whether the Tecnica Women's Zero G Guide Alpine Touring Boot is better on the uphill than it is on the downhill. With a weight barely exceeding three pounds, this boot barely adds to the weight of your setup as you suffer up steep skinners. Yet, this boot boasts a flex of 105, which plenty stiff enough to keep you grinning on the descent. A boot this stiff handles any boundaries, from backcountry chutes to resort piste. Tecnica built this boot on a mid-sized last (99mm) that's snug and pre-punched to fit most foot shapes.

The Zero G Guide features Tecnica's brand-new C.A.S. shell, which uses a dimple structure to make heating and punching faster and more effective for bootfitters. Practically a roadmap for bootfitters, C.A.S. identifies your foot's hot spots and pressure points with ease, and paired with the comfortable Light Fit liner, you'll never feel pain for the rest of the season. The Zero G also features a rockered rubber sole that makes bootpacking a breeze, and you can switch out the boot's tech binding interface with DIN-certified soles for alpine bindings.

  • An alpine touring boot that dominates the descent
  • Stiff 105 flex suitable for hard-charging ladies
  • 99mm last assures a snug, precise fit
  • Walk mode with 44-degree cuff rotation
  • C.A.S. Triax 3.0 lower shell with heat-moldable dimple structure
  • Merino wool liner manages moisture and temperature
  • Rockered rubber sole makes hiking and bootpacking easier
  • Compatible with tech bindings and alpine bindings (soles sold separate)
  • Reviews
  • Q & A

Happy feet

  • Familiarity: I've used it several times

I've used these boots for touring and riding the resort - both cruising the groomers and sampling some epic Canadian powder - and I've been very happy to have them in all those situations.
In terms of fit, I usually wear a 6.5 and went with the 22.5, which was the right length and felt snug around the ankle, though not unbearable in any way. I could have just worn them out of the box and broken in the liner myself, but I decided to have the liners heat molded to my feet - which made these hands down the most comfortable boots I've ever owned. My feet feel supported, my toes stay warm, and I get to stay out on the hill all day.
I haven't had any trouble with the walk/ski switch, but I have been warned that it can break if the boots are slammed on their backs, so I would try to avoid throwing these too vigorously into the trunk at the end of a long day.

So light!

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

I love these boots! full disclosure I have yet to ride in them but mt initial impression could not be better. They are so light and the walk mode on them is bomb. I'm stoked to take these guys for a ride!

Solid for the backcountry.

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

These have been awesome touring boots so far. They're stiff enough to charge hard on the descent, and light and comfortable enough to keep my feet and legs happy on the uphill. I have a medium-shaped foot and so a 99 last is perfect. The liner is super comfortable and makes it so I don't have the undying sense of urgency at the end of the day to rip my boots off--in fact, I've spent many hours at the bar in them afterwards. They're a great backcountry boot but I've also been happy with them when I've skied in the resort. While they're not the lightest touring boots out there, they're definitely light enough for big days and multi day trips in the backcountry. Plus, a solid boot is necessary if you want to enjoy the descent!

An incredible backcountry boot

  • Familiarity: I've put it through the wringer

I was hesitant for a while to switch over to a tech setup-- I thought for a while I'd have to seriously sacrifice the downhill for a lighter option on the uphill. After years of lugging around a heavy AT setup in the backcountry, I finally went for it and got a pair of the Zero Gs.
I've been super impressed with the downhill performance this boot maintains, plus it's awesome on the uphill. The walkmode gives a huge range of mobility and it 's been comfortable since the first day I've had them. I usually wear a size 22.5 ski boot and I got these in a 23.5 (my foot is usually a 6.5 in shoes).
The tread on the bottom is also awesome and has been great for bootpacking or climbing up rocky sections. I use these with a DPS Nina 99 and a Dynafit Radical binding and absolutely love my setup.

Hail Tecnica!

  • Familiarity: I've used it several times

I find that far too many AT boots compromise their structure in order to achieve downhill performance, so as a result, the uphill capability can suffer along with it. Not with Tecnica! Coming from mainly an alpine background, I wanted a boot that would not only cruise uphill efficiently but still allow me to huck my meat off a cliff, slay powder, and cruise through the hard re-freeze that skiers can encounter after a long day of zipping around snowy peaks.

Bam! The Zero G does it all.

Weighing in less than a pound heavier than standard tech boots and with a greater range of motion in the cuff than others, this is an incredibly efficient 4 buckle boot for the uphill. This boot is most comparable to the Cochise in terms of fit with the exception of a more forgiving heel pocket to accommodate uphill hiking, but it still locks in place on the downhill. It's got the same ingenious perforated shell to make the plastic more pliable for heat molding and punching to cure those oh so painful hotspots that people like me often encounter in ski boots. Tecnica lightened up the cuff by removing some of the material to help maintain a solid ROM, but again, I must mention that it does not sacrifice the downhill and still skis like a true 105 flex.

In addition to it's incredible performance, it has an amazing out-of-the-box feel that will fit most feet. I even have an obnoxiously wide foot, but that's almost wasn't even a problem when I first stepped into these. The liners are slow to pack out, which will promote a healthy life span of these suckers. Right out of the box, this comes only with the tech soles, but DIN soles can be purchased separately through Tecnica. The rockered rubber is ultra sticky and isn't afraid to walk over ice and rocks (though I wouldn't use this boot for mountaineering). The sweet cherry on top of all of these amazing features of this boot is the Merino wool around the inside of the foot of the liner. Thank you, thank you, THANK YOU, Tecnica!

Too long, didn't read: The future is here. Finally there is a boot that is light and efficient uphill but still skis like a resort boot. Who'da thunk?!

great boots

  • Familiarity: I've used it several times

I'm new to touring this year so this is my first pair of touring boots. First off the fit of these boots is amazing. 28th ski season, and I've never had a pair of boots be this comfortable right out of the box. I've got narrow feet, average instep height and slim calf muscle. I find the heel fit spot on, the liner grips without pressure points or needing to crank down on the instep. I don't have much nuance to add about the walk mode, being new to this game. I go uphill, my feet don't hurt, that's about all I can say. They really shine on the downhill. I find the flex to be spot on for stiffness and nicely progressive. They feel solid and agile and they make me smile. I trust them on anything at any speed. I'm on the shorter, lighter spectrum though 5ft3 120lb, and i'd go for the guide pro if I was any taller/heavier/had feet big enough to fit a 24.5. I am also appreciative that Tecnica didn't come up with some assnine women's specific name and make them in pink. Thank you Tecnica.