I never really knew how to fold and store a latex catsuit properly, so I copied this method from a delivery I once received from Kink Projects.
Step 1 – Lay it out flat
Lay the catsuit face down on a soft surface with the zipper centered. Fold both legs straight up toward the torso so the feet point to the top, then fold both arms inwards over the folded legs toward the center.

Step 2 – Fold the sides inward
Fold the right side of the body and arm straight in toward the center so the outer edge reaches the middle line. Fold the left side in the same way so both sides overlap slightly in the center and the whole suit is now a long, narrow rectangle.

Step 3 – Fold the legs up
Fold the lower part of the legs upward toward the torso, roughly to hip height, keeping the edges aligned. Smooth the material again so there are no sharp creases and the zipper area is not bent too tightly.

Step 4 – Final compact fold
Fold the remaining length of the suit once more toward the top so you get a compact rectangular package as in the last photo. Press out remaining air, smooth the surface, and store the folded catsuit flat in a cool, dark place to protect the latex.

Step 5 – Put it in a clean and dry bag
Carefully place the folded catsuit into a clean, completely dry plastic or fabric bag, making sure there is no dust, moisture, or metal parts touching the latex. Close the bag so it is mostly airtight and store it in a cool, dark place to protect the material from sunlight and humidity.