The nightshirt... one of the most comfortable and versatile garments ever and each has an adorable cat design available exclusively at HepCatShirts.com! It's like a big one size T-shirt. Cat lovers can wear it to lounge around the house, out and about with leggings, with a belt or scarf, on the beach or to by the pool as a cover-up. All are comfy cotton knit but the measurements vary for each design as does the features (pockets/ no pockets) so be sure to check out the description on each design. This is a GREAT gift item if you aren't quite sure of size.