To use this hat, simply place it on your child's head and adjust the tie at the base of the crown for a snug fit. On windy days, use the optional ties to anchor the hat. When traveling, collapse and fold the hat like an origami. Since it's handmade from natural organic grass fibres, avoid getting it wet as it may damage the material. If it gets dirty, gently brush off the dirt with a soft brush. Keep it in a cool, dry place when not in use. Remember, the sizing is approximate, so check the size guide before buying for the best fit.