NX Pancake pouch
Hi, last year I bought two of these:
He`s not selling any at the moment, but I guess you could try contacting him.
These are neoprene pouches, the 30 mm fits perfectly. 16 mm was a bit tight at the begining (it`s a bit longer), but it`s fine now. Pouches take up less space than Samsung originals, but I think they protect my lenses better.
Hop that helps...