Washing instructions:To avoid becoming deformed please do not soak for a long time. Wash it by hand, vertical drying. How to care for hats: Don't place hats in wet places and reduce the washing for the hat, which can avoid deformation or reduce the warmth function. Reminder: Because the different measurement, there may exist 1-2cm error, it's a reasonable range. And color difference is one of the problems that each network seller can't avoid, due to the light when taking photos and display brightness settings, the product you receive may have slightly color difference against the picture.