Patent application for
movable mid-sole.

Foldable mid-sole enables
shoe to transform from high
heels to flat and vice versa. 
The hinge attached to the
mid-sole prevents the half sole
(front)  from lifting up,
making shoes stable and
adjustable to any heel heights.

Cover up
A short boots that has an
ankle cover with zipper on
the side. Taking off the cover,
becomes a flat shoe.