These are great and inexpensive bags.  I do wish they had a plastic keeper that kept the cords taught when drawn together.  But I tie it off and works perfectly for my size 10 shoes.  Not large enough for a chukka boot to be stored as the shoes are in the picture.  I would think a size 12 or larger would prohibit the bag from being closed completely.  An XL bag should be offered for longer shoes like that.