reversible

a garment (especially a coat) that can be worn inside out (with either side of the cloth showing)

capable of reversing or being reversed; "reversible hypertension"

capable of being reversed or used with either side out; "a reversible jacket"

capable of being reversed; "a reversible decision is one that can be appealed or vacated"

capable of assuming or producing either of two states; "a reversible chemical reaction"; "a reversible cell"