Wings diapers are about as cheap as you can get. They are nearly paper thin, and do not absorb much at all. The sides and areas around the legs are not waterproof either, so be ready for numerous leaks upon the first wetting. They will also clump and fall apart in about two hours, so also be ready to change very, very frequently (including overnight).
Given their numerous changes required, they are axtually a bit expensive when looked at on a per-day basis. There are other, better, diapers out there. Don't bother with these. On a 1-5 rating, I'd give them a -1 rating if I could.