I bought it. It was supposed to be for my 3 years old daughter's school Coldplay event but that wasn't the case cause of the size.

And I, on the other end, couldn't event represent my daughter "

When growing up, some things feels wrong but you do them. Other things feel right but you're scared.

STOP. Follow the first instinct towards progress & be real/

These can fit a size 13 US male-- my husband tried these on and they fit. There is a velcro piece that allows opening around the ankle. It's affixed to the back of the white "socks" of the shoes. I dont believe these allow any sort of tightening of the shoes but allow for easier insertion of a larger adult foot. There is also an internal red elastic that can be used to go over the top a foot to better secure the foot to the bottom of the shoe or be brought back to the heel to further scoot the foot into the shoe. I did buy these for my 5 year old who wears a size 10 US wide kids. These were way too big for him. He can fit his house slippers in these to allow for a better fit. However, he loves them! He feels like he is Sonic and says he can go super fast! Though, he does shuffle his feet across the ground and risks stumbling over his own feet - though I expected this. If your child loves Sonic, do not hesitate to buy these due to size. They can grow into them and get years of use. I would caution though that since these fit HUGE on a child's foot, be warned that the child can hurt their ankles or fall due to poor fitting. These are also a soft material, like a slipper, and would easily get soaked if worn outside in wet or damp weather/ground. Either way, I'd buy these again to fulfill my 5 year olds dream to be like Sonic.

my son has been able to wear these in and out the house

Excelente

It's too big but my son loves it