If something is sheddable, it can be shed or removed easily, like an animal's fur or a snake's skin.
Sheddable things are things that can be taken off or gotten rid of without much trouble.
Examples:
Cats have sheddable fur that comes off in the summer.
The snake's sheddable skin was left on the ground.
The trees have sheddable leaves in the fall.
I wish my homework was sheddable!
My dog's sheddable fur gets everywhere!
The lizard's sheddable tail came off when it was scared.