CUSTOM DESIGN - The graphic design on these sleep pants displays the iconic Jurassic Park logo ADJUSTABLE WAISTBAND - Find the perfect fit in these PJs with the elastic waistband and adjustable drawstring OFFICIALLY LICENSED - This piece of Jurassic Park merchandise is officially licensed and 100% authentic HIGH-QUALITY MATERIAL - These pajama pants are made from 60% cotton and 40% polyester which provide breathability and comfort WASHING INSTRUCTIONS - Machine wash with like colors, tumble dry on low, do not bleach, iron, or dry clean Jurassic Park Sleep Pants-XX-Large