Khadi rag papers are made from 100% cotton rag.
Cotton rags have longer fibres than linters which are the shorter fluffy cotton seed fibres commonly used in papermaking.

These are white rag paper packs of five folded zig zag cards in 210gsm.
They are made from 100% long fibred cotton rag,
are internally sized with neutral pH and are acid free.
Genuine rag papers are rare and it is the fibre length of this raw material that gives Khadi rag papers their exceptional strength and durability.
Internally sized, and acid free.

A short video here showing khadi paper production.