reversible

Capable of being reversed or used with either side out.

“a reversible jacket”

Capable of assuming or producing either of two states.

“a reversible chemical reaction”

“a reversible cell”

Capable of being reversed.

“a reversible decision is one that can be appealed or vacated”

Capable of reversing or being reversed.

“reversible hypertension”

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