Premium 2" Dragon Glide™ Mop HeadSwobbit's Dragon Glide™ features a polyamide non-woven interior. It is impregnated thru a patent-pending process with polyurethane. This unique process permits it to pick up 400% of its weight in water. When the material is dry (not wet), it is soft. Oddly, and similar to PVA, it is best at water absorption if immersed in water, wrung out, and then used to dry the surface of the water. You would think the dry state would be best, but that is not the case.