First of all, the soles of popcorn shoes are made up of a large number of small flexible foam balls, a material that is not only easy to obtain but also very cheap. Because of the low cost, manufacturers can sell these shoes at a relatively low price.
In addition, the manufacturing process of popcorn shoes is not complicated and the production process is relatively simple, so the production cost is also relatively low. Moreover, the high popularity of these shoes and the high market demand have also prompted the manufacturers to continuously reduce the cost and increase the production in order to meet the demand of consumers.
In short, the reason why popcorn shoes are cheap is mainly due to the influence of its material, manufacturing cost and production process and many other aspects.