The wide area of webbed feet can provide you with powerful power, so that you do not have to move your hands to generate power, so that both hands can be freed to engage in other work. The webbed feet are mainly divided into two types: heelless and sheathed. Overhead webbing is commonly used in warm water or snorkeling. Heel-less webbed feet should be used with diving boots. Big and hard webbed feet are fast to use, but easy to fatigue and cramp; small and soft webbed feet lack the power to push.
Fins have different materials, designs and characteristics. The webbed design includes: keel to increase the hardness and balance of webbed feet; drainage holes to reduce resistance to webbed feet to increase efficiency; diversion ditches to slide horizontally across webbed feet to increase speed. The choice of webbed feet depends on your body shape, physical strength and diving environment. It is important to be comfortable and suitable.