In a sateen weave, threads skip over three or four yarns ... A manufacturer could use a double-ply yarn and have 100 yarns going in the weft and warp directions but count it as a 400-thread ...

Sateen, on the other hand, is made from cotton using a weave where the weft threads pass over/under a larger amount of warp threads. That delivers that smooth texture and subtle sheen without the ...