It floats using its well-developed flotation sac. it assists in the rescues of drowning people.
Floatzel is an orange Pokémon resembling an anthropomorphic otter or weasel with longer arms than legs. It has four fingers on each hand and three toes on each foot. Its feet are small in comparison to the rest of the body. It has two pointed blue fins on its arms, two aligned, backward-swept, pointed fins on its head, and two tails. Its forelimbs and tails are tipped in cream, and there is an orange teardrop shape near the bottom of its cream belly. It has a yellow flotation device that extends around the back of its neck and its arms, down the length of its body and back round to just above its tail. Floatzel also has a circular cream spot in the center of its head, cream eyelids and a pattern of two black triangles on the edges of its cream muzzle. It has small, sharp canine teeth, the top two of which can be seen when its mouth is closed.
Male Floatzel have two cream spots on their back, while females only have one.
The yellow flotation device, which seems to be made of rubber or a similar substance, gives the impression of an inflatable life vest. When it lays on its back, the flotation sac could also be interpreted as a sort of inflatable dinghy using its tails as a propeller and its fins as oars. It can use its swimming capabilities to assist in the rescues of drowning people. To help it dive, Floatzel can deflate its floatation sac, and then inflate it once again when it wishes to surface.
It is a fresh water Pokémon and tends to inhabit swift-moving rivers. Some believe Floatzel is a fish-eater.