I have made a bag to hold a parasol. These are made for parasols ordered by my customer.
The bag is designed to be tied like a drawstring.
This shape allows you to hold it where it is tied, and if you hold it through the string in your hand, you can use both hands freely.
This is handled with bag stitching. Because I don’t want the edges of the fabric to come loose in the bag and lint to get on the parasol.