Abstract: A shoe includes a sole and a collapsible upper attached to the sole. The upper includes a vamp portion to be worn around the toes and forepart of a foot of a wearer, a heel portion to be worn adjacent the heel of the wearer, side portions provided between the vamp portion and the heel portion to be worn adjacent the sides of the foot of the wearer, and insets, at least one inset being provided between each side portion and the heel portion of the upper. The insets are made of a thin, flexible material which can be easily folded to allow the vamp portion, side portions and heel portion of the upper to collapse onto the sole when not being worn.