Jeremy Cotewrote a review of Scarpa Phantom 6000 Mountaineering Boot - Men's on December 29, 2015
Familiarity: I've put it through the wringer
Fit: Runs small
You can't go wrong purchasing these boots. There are some key things to know when ordering when it comes to sizing though.
It is well known that Scarpa has some sizing issues with these boots. They run very small. I initially thought I would need a 45 or more likely a 46 to fit my very wide, size 11 feet, along with a liner sock and mountaineering socks. The 45 was never going to work and the 46 felt too tight with anything other than a very thin sock, which I wasn't planning on using. I ended up going with the 47 boots. I wear them with an REI wool liner sock and Darn Tough Mountaineering socks. My fit is moderately snug but with ample room to move my toes around. No toe ban on down hills and heel lift if fairly minimal once I switched out the stock foot beds for orange Superfeet insoles. Kicking in with crampons on is also not a problem.
So back to the sizing issue:
My sense was that these boots were off by one full size relative to what I have typically worn in the past and Scarpa's own size chart. The 47 equates to a size 13 US men's by the numbers. In any other boot, even with full socks on, I would be swimming in a 47, but not these boots.
Interestingly, the stock insoles that come with these boots reveal the true size. My 47 listed boots, had size 46 stamped foot beds in them. Again, these boots fit like a 46. I don't know if this is a Scarpa production error/mislabeling or what, but trust me, once you look at the size chart and figure out what size you need based on the numbers and your foot measurement, be sure to add +1 to that number before ordering. If the chart reveals you need a 44, start with that but be sure to also order a 45, as the latter is likely to be the one that fits.
**As an aside, the Scarpa Phantom 8000 boots also have the same fitting issue. I need a 47 in that boot as well. The insoles were also stamped with 46. However, this is not the case with the Phantom Guides, which come in half sizes. In that boot I wear a 45.5, with a medium cushion sock and fit is perfect for a technical single boot I won't be using at altitude. The insoles on these were marked 45.**
Two aspects of these boots make them winners:
2. Lacing system
They are super lightweight and the lacing system is superb. I have seen some reviews that less than enthusiastic about the stock liner that comes with the boot, but I love it and have not had any issues with it. Just switch out the stock insoles and you should be good to go. Please note that these liners are not heat moldable, although I've tried.
My only complaint is that the toe welt is fairly narrow around the sides and doesn't fit Black Diamond crampons as well as other brands. I use them and the fit is 'good', but not great. Other than that minor detail, which can be fixed by swapping out toe bails (BD's replaced by Petzl), these boots are a very worthy investment.
I should add one last comment about the T-Zip zipper system:
I have not had any issues with the zipper but you just need to make sure it is well lubricated. It runs smoother and won't freeze up on you.