These have been my go-to sneakers/walkers for many, many years.  The last pair I bought developed a very noisy squeak in the right shoe when walking on any hard surface,  The loudest squeak I ever heard from a shoe, like a cartoon squeak!  I tried drying the shoes thoroughly, using powder, and inserting new insoles - nothing worked.  It seems like the problem is actually inside the sole of the shoe.  I eventually retired them to walking my dog (usually on grass) duty, and decided to give New balance another try since I had worn these for many years.  Well, there it is again, not quite as loud (yet), but this time in both shoes.  Squeak, squeak, squeak, squeak, squeak - who could stand this?  I bought this pair from the big store in Maine, so I can take them back.  I ordinarily would never take shoes back, but someone has to let New balance know that something is haywire in the manufacture of these formerly great shoes.  Just following up - I never did take these back.  Wore them for three months, just walking the dog outdoors.  Then the sole fell off the left shoe.  No heavy use, it's been very dry weather.  It's hard to believe these shoes have gotten so flimsy in just a few years.