I have 3 older wnnl's,all with inserts,all have some staining (non heavy). 1. Yellow with giraffe embroidery. 2. Purple. 3. Green. £2.25 each plus post.
I also have 1 XL DNF, with insert, slight staining.
Yes it is. I photographed inners to show staining & folded sides to show colour of nappies! They have been sat in a basket for a long time so will need washing