+1 on closing the Velcro to wash, stuff gets stuck to it
Can fray some materials.
I turn inside out too.

Working ok,
a little of a pain to get ph out, in my blind spot. (But that was the purpose)
Washed ok,
watching for sticky bond failure.
(Wonder if the iron on stuff is tougher ?)

Sew in a zipper ??? . I was barely able to use the self sticking stuff . LOL.

My ph is a Tank, iph7 the big one, in an otter box on a belt clip holder (tough on phones)