Polar Bear has lost his underwear! Where could it be? There`s only one thing to do: Remove the book`s underwear-shaped bellyband to find the missing pair! Is that Polar Bear`s underwear? No, it`s Zebra`s—see the colourful stripes? What about that itty-bitty pair? No, those belong to Butterfly! And so the search continues, with every page revealing an animal in eye-popping undies. This laugh-out-loud, one-of-a-kind novelty book from Japanese design talents tupera tupera will surprise and amuse children and their parents, all while affirming the importance of putting on your underwear.