I got mine last week, last two days I've kept the top of my hair tied up, slept with it in (in the turban obvs!) just taken it out now and NO KINK! I mean, I know you said no kink, but I didn't for a minute believe that meant NO kink! My ahir is just as straight and kink free as before I tied it up. That's beyond incredible! I'm looking forward to getting my lower half head of braids out so I can try tying up all my natural hair with all the different Frieda colours! Just wow!