I was troubled with wide upper and high feet of the instep. Actually it is perfect for 26.5 cm 3E shoes, but if it comes to safety shoes it is no use unless it is 28 cm 4 E as well. The size of shoes is irresponsible by manufacturer. If you do not wear it for a long time and you do not know how to hit your fingers, gradually getting tight and getting hurt when it hurts for half a day wearing. For me, this shoes brings a great advantage to me that saves the medical problem of not having to become a hallux valgus because the part of the mesh flexibly stretches and shrinks because of the problem of light weight. Recent Japanese people like many foreigners who have low-slender legs are increasing, it is getting harder for old Japanese like me to pick up shoes that can gradually be put on these days . For a person like my foot is a pair of salvation.