Machine wash cold, inside-out, gentle cycle with mild detergent and similar colors. Use non-chlorine bleach, only when necessary. No fabric softeners. Tumble dry low, or hang-dry for longest life. Cool iron inside-out if necessary. Do not iron decoration. Do not dry clean.
Be wary of washing and drying on a high setting, especially when the garment is 100% cotton. High-temperature washes can fade and crack the print, and a high-temperature dryer settings can shrink the garment, as well as damage the print.