Pack 12 Sets Set includes 1 pair Suggested Retail 6.99 per set What are shoe "er" caps? They are little caps that cover the soles of shoes for packing them individually in a suitcase or carry on bag. Traditional shoe bags for travel hold a "pair" of shoes and this takes up more room in a suitcase. Our shoe "er" caps also have the advantage of fitting ALL kinds and sizes of shoes, from sandals, to tennis shoes to boots. They make a fun little gift (stocking stuffer) and keep the grime of the streets off your clean clothes when traveling.