SkechersMen's Go Walk Evolution Ultra-Impeccable Sneaker

Are the x-wide = to e, 2e, ee w (wide) or are x-wide = to 3e, 4e, eee, eeeee, ww xw (extra wide)?

How do I return product

Hi. How wide is 7.5X compared to the standard 7.5 size? Have a 7.5 for 3 years but lately it seems kind of cramp at the toes.

Are they washable?