Beuchat Mundial Foot Pocket Each Sold Separately. To receive two pockets for a full pair of fins, please put quantity: 2. The Mundial fin pocket is derived by utilizing BEUCHAT extensive experience in the manufacturing of two distinct materials. Conceived from a combination of soft materials to realize; flexibility, power, and resistance for optimum performance. The foot cavity is reinforced to transmit power to the blade without any diver discomfort.