The protagonist of this story, a little mouse, receives a gift from his mother: a precious vest that she has woven for him. All his forest friends, each bigger than the last, ask to try on the vest, and he lets them all try it on. The vest starts to stretch and stretch, and the reader can start to predict how the vest will turn out in the end. When the little mouse finally gets the vest back, it's all stretched out, but there is a surprising twist at the end that demonstrates that you can find a solution for any problem.