My specs are Roughly 70% light brown, that one was all french lace with a poly perimeter. Now I am going to go ALL french lace as poly is detectable to the touch. I had to grab a girls hand if she would try to hold the back of my head and that can kinda ruin the moment cos you are then thinking about for just a millisecond!!!! I think the all lace will be MUCH less detectable to the touch, it can't be unlike the front to the touch and that is very hard to feel.