nike men's flex 2017 rn running shoes (green, 9.5)

As a big guy in the Big and Tall, I need a tennis shoe I don;t have to tie and can slip on and off. When you slip these shoes on, the back of the shoe above the heel always drops over, bends, folds over, and you have to constantly work your foot in and out to get it to bend back. Painful, especially during those times your feet are swollen. 2nd pair I've bought because it is the ONLY shoe in my size that is a white, normal, velcro shoe. Going to shop elsewhere I think and try to find another place to buy my shoes. Just not worth it here.