Pietro F

Hi, I bought a pair of PG in number 28. I usually have a 44.5 (10.5 US) in trail/running shoes. I also have a pair of alien 1.0 in size 28 which fit me well. I have a low instep. I used the Pierre gignoux 2 times and it make me a blister on the heel on both the feet. In the second exit I molded the liner but the problem didn’t disappear. In your opinion, it can be a problem of size? Or I have to change the boot because it not fit my feet? I feel the heel slipping a bit up and down, but the foot is perfect p...