I have Indian prefolds from here
Copy&Pasted from cottonbabies.com
Indian prefolds benefits:
Unbleached diapers wash up quicker (3 washes)
Indian prefolds drawbacks:
May wear out faster than the Chinese prefolds.
Lighter weight thread is used when sewing the ends of the diapers so the thread may wear out faster than the fabric does.
Chinese prefolds benefits:
Heavier duty stitching
These are probably made of twill
Due to being made of a heavier-weight fabric and stitched with a thicker thread, these prefolds will probably stay nice longer than the Indian prefolds.
Chinese prefolds drawbacks:
May pill up more than the Indian prefolds.
These diapers are still soft but they are definitely rougher than the Indian prefolds (when washed and dried in the same load)
It takes 7-10 hot wash cycles to make an unbleached Chinese prefold usable and absorbent.