Our pajamas are true to size. 2 piece set - short-sleeves,?button down?shirt with its matching short. Drawstring waist for maximum comfort. Manufactured in Peru. Ultra-soft 100% Jersey Peruvian Pima cotton (summer feel). Water-based, lead free print. No flame-retardant. No chemicals. Pre-washed & pre-shrunk?. No pilling, even after many, many washes. Machine washable. Tumble dry low.