Looking for recommendations: a good approach shoe to pair with my strap-on crampons for alpine rock climbs around Chalten and maybe Torres del Paine. Ideally waterproof, lightweight, and capable of climbing light 5th class. Considering Sportiva TX4 mid GTX but not sure how waterproof it really is, and if it could really kick steps in snow if needed..
I got a pair of the TX4 mid's for the bugaboos, and found them to be perfect for that kind of environment. they're definitely waterproof and quite a bit lighter than mountaineering boots, while offering solid grip on 5th class terrain. pair them with a set of strap-on crampons and they're great for steep snow and glacier travel (assuming you have all the other requisite gear).