The two 3-d suits I own are just too noisy to draw silently in. The sound quiet enough in a non hunting enviroment, but when it's deer 30 and the woods are quiet they are loud to my hard of hearing ears.
When someone makes one with fleece or cotton leaves I'll buy my next 3-d suit, until then it's back to the same old same old for me.

They do work well in concealing you better if your not moving around making noise with them, I'll give them that.