A "Where's Waldo?" costume is a red and white striped outfit based on the attire worn by Waldo. Waldo is the main character in the search-and-find book series "Where's Waldo?" written and illustrated by author Martin Handford.
Waldo wears a beanie hat and long-sleeved shirt with horizontal red and white stripes, a pair of blue jeans, and brown loafer shoes. He wears a pair of round, wire rimmed eyeglasses, carries a brown walking cane and wears a brown satchel over one shoulder.
A "Where's Waldo?" costume is worn by those who wish to bring the experience of the search-and-find book series to the real world. In the books, readers are presented with a highly detailed illustration, typically depicting a historical event or vacation destination, and are challenged to find Waldo among the busy artwork.