Why pay more for non-ecological layers, yes I will hear people who will tell me "Ecological already it is more expensive and more is just a fad" well then I ask them to tell them before you speak because in some non-green layers contain toxic products entering the baby's bloodstream and after you can imagine the rest, ecological layers are biodegradable but also preserve your baby and icing on the cake they are less expensive than others. So for me the choice is quickly made. Also I have found no leaks since using those below. For us it's all good.