I have three models of Cons, the City Trek which have a CX sole and leather upper, the Chuck 70 Gtx, and these, the Tectuff. I distinguish these. They are the most adaptable. Not overly warm nor as heavy as the City Trek. Of course, the City Trek has the best sole and insole, but I found that these specific ones feel better underfoot than the Chuck 70 gtx that I have (even though the 70s are generally considered better).
Now due to the material (Tectuff), whether from the insole; they are also more flexible in a good way, meaning you feel like you are wearing more shoe on your feet, always in relation to the Chuck 70 gtx. The upper material I don't think is related to leather - it is mentioned in some descriptions, but this Tectuff seems to be synthetic. Good quality though and it looks durable. Now the size. I normally wear 43 in Cons. So 43 fits me. In Nike, I wear 44. Edit: After a lot of walking, in no way should you follow the chart that corresponds the 42.5 Converse All Star to NIKE. The 43 is borderline, if I may say that if you want a lot of walking because the sole is thin, even a larger size with a good insole would be a solution.
Finally, the waterproofing, which I have not tested, seems to have a flaw from the start in the way the tongue is constructed, which does not connect with the rest of the upper at the full height but only at the bottom, thus allowing water to enter after some time in the rain. (+ the classic holes that the shoe has on the side)