A special feature of the New Balance 991 is that it comes in different sizes of widths. Some people have bigger feet in size according to length yet they still find the shoes that they purchase a bit uncomfortable. New Balance addressed this problem by providing customers with shoes that have varying widths so that there is one for every shape and length of feet. The durability and sturdiness of these shoes have stood the test of time and it is for these reasons that many users buy another pair the moment theirs get worn out. New Balance 991 is definitely worthy of your investment.