Drawstring Pouch

I am looking for a simple drawstring pouch pattern. I want to make it out of mirco suede. Just the size that a person might hang on their belt.
I can't figure out how to make the part that the string would run through to make it a drawstring closure. (did I explain that correctly, sorry)
Thanks for any suggestions.

Here's one tutorial that looks fairly easy to understand.

http://www.purlbee.com/easy-drawstring-bag/

You just make it like a regular lined bag, except you leave the side seams open in the area the drawstring will run through.

Hope that makes sense!