What an amazing design! 2 zippers that open out from the center, you can thread the yarn between the two zippers and your yarn stays controlled inside the bag. All size bags have pockets on the inside.

Regular - 14" zipper opening and 5" tall
Large - 14" zipper opening and 9.5" tall
XLarge - 14" zipper opening and 10.5" tall includes snap out inside pockets