I bought this boot for ice climbing in New Hampshire. I've been out four times now in temps down to the single digits (F). Finnish: The first thing you notice when unboxing these is, well, how nice looking they are. The "look" like the build quality is exceptional. Weight: Size 43 (US 10) each boot weighs exactly 1000g. Fit: The fit right out of the box is fantastic. The sizing seems to be spot on with all my other shoes. (US 10, EUR 43). My feet are a little wider than average and I often have compression at the widest part of my foot. Not with these, these fit perfect. I'm not sure how these will fit a narrow foot so be advised to check that if your feet are narrow. As mentioned in other reviews, the lacing system is simple and functional. The locking eyelets allow differential tightening between the top and lower part of the boot. Crampon fit: Grivel Rambo 4 crampons fit perfectly. Steep ice. Great support on steep ice. Hiking: The stiff insole that make these great for vertical ice makes these relatively stiff and inflexible for hiking. For approaches on snow they are fine but I'd look for something else for longer hikes that don't involve steep climbing. Warmth: My feet get cold. I have some toe nerve damage from many years of playing outside in the winter. I have used these standing on ice for 6 hours in air temps in the teens. I've done a couple hikes in temps in the single digits. I do have to put a chemical toe warmer in the toe of the boot but with that my feet have been comfortable in those conditions. The G5 Evo's are probably warmer but these work for what I want. I am very impressed and happy with these boots for what I need (winter ice climbing in temps down to low teens (F). I recommend these for this purpose and would buy again.
Read More