When you’re looking for a Halloween costume, or Christmas & New year present,the Calanta Animal pajamas will be the ideal gift! Each one piece pajamas is unique and full of character feature, thor adult costume sure to be a hit everywhere you wear it. What makes the CALANTA Animal Onesies conquer you? The wearing of costumes is an important part of holidays developed from religious festivals such as Mardi Gras (in the lead up to Easter), and Halloween (related to All Hallow’s Eve).