The booties is one of the accessories that we are going to need for surfing . The first thing to keep in mind when buying them is the size. Each brand will have a different size, so we have to pay attention to it when buying. It is important that we do not get too big, as they would fill with water. They must be smaller than your foot, to stretch and remain completely attached to the foot. The second thing to look at is its thickness. The 2 mm or 3 mm ones are usually used in winter in Europe, and the 5 mm ones for the colder months. Low booties are thinner, between 0.5 and 1.5mm thick, offer greater freedom of movement, are used mainly to protect the feet when we suffer in waves of stones or reefs.