The straight pouch with flap is the most economical of all fabric pouches. It is a rectangle (or square) with three sides sewn together and the fourth side open and fitted with a square flap of varying height or a rounded flap.
short flap pouch
The recommended flap height is about 1/3 of the total height of the pouch. But, again, the height will be customized as for the other characteristics of your pouch.
long flap pouch
Another variation of the square flap is to have a flap that is almost the entire height of the pouch, which gives the pouch a different look. Depending on the positioning of your product, this is an option to keep in mind.
pouch with rounded flap
The rounded flap is always short. It has the same characteristics as the other flaps while adding an artisanal touch because the cutting and finishing are done by hand.