Kids' socks

Cotton soaks up moisture, stays wet and starts to rub, so for a trip, reach for Merino or synthetics. Check the size as often as you do for shoes — a sock that is too small bunches up the toes and is noticeable sooner than tight footwear. For winter, you choose taller and thicker ones, but make sure there is room left in the shoe: a squashed foot feels colder than in a thin sock. For a multi-day event, allow for one extra pair; kids are guaranteed to get them wet.