Nursery Decals and More Sibling Shirt Set for Sisters and Brothers, Includes Im The Big Sister with Owl Amazon size chart is not specific to our brand. Please see Description for dimensions on t-shirts Screen printed design on a Cotton shirt for comfort and softness. Gift Set Includes 1 Toddler shirt and 1 Bodysuit. Heather Gray shirts/bodysuits are 65/35% cotton-poly blend. The graphic design is a registered copyrighted design. Infringing companies will be prosecuted.