Sooooooooo the whole back half of my head (and sides) are 4b, and has me walking around looking like a mushroom. I wear a curly hair hat. (Basically I'm looking like a jazzy aunty who went natural) I have just accepted the fact that my 4b hair shrinks to about 75 percent after realizing that my nape is one inch away from brastrap. All these months I never knew, or cared to check since my hair shrank so much, and I consistently wear wash n gos. If you guys have any non heat stretching methods to stop extreme shrinkage, please let a girl know. (I tried banding the other day, with questionable success.) Right now I have put the back in twists, for my first ever twist out, on half my head. The front half is in a big top puff/space bun. (I hope this style works) I used texture id styling cream for my twists, with a little kinky curly curling custard.