A recent experiment involved testing popular Amazon products. The focus was on the best-selling underwear available during Prime Day. The individual conducting the test had their partner try out these highly sought-after calzoncillos.

Their opinion on the product was recorded and shared. Further details about the experiment and the partner's opinion can be found in the original source, including the motivations behind trying out the product, such as whether it was a necessary purchase or an impulsive buy.