SIZE 1-3 T-Rex Santa grow with me tshirt. Cotton lycra print, solid red waistband, neckband & cuffs (95% cotton 5% elastane). Grow with me clothing is designed to last your child through several sizes. This t-shirt has a looser fit on the smaller side of the size range and tighter fit on the larger size of the size range so it can last your little one through more than one Christmas. Item in photo is the one for sale.