Esme Boys Pajamas Long Sleeve Top & Pant Set 5 Shark / Grey. Esme size runs different than other brands, check the measurements below under Product Description, order at least 2 size up. (For example, if you wear size 6, you may need order Esme size 8). Most Comfortable & Super Soft; 47% Modal/47% Cotton/6% Spandex. Soft pima / modal cotton. Breaths in cold and warm weather. Made in USA. Machine wash in warm or cold water.