Abstract: This disclosure pertains to an apparatus for varying a footwear's color. The apparatus comprises a first variable filter having a first reservoir portion and a first non-reservoir portion. The first reservoir portion houses a first dye when the first variable filter is in a first state. The first non reservoir portion houses the first dye when the variable filter is in a second state. The apparatus further comprises a first air pouch adjacent to the first variable filter and a casing surrounding the first variable filter and the first air pouch.

Abstract: Discloses is an apparatuses and methods for varying a color of a portion of apparel. The apparatuses include a first reservoir comprising a first portion comprising a first dye when the first reservoir is in a first state, and a second portion comprising the first dye when the first reservoir is in a second state. The apparatuses also include a first air pouch proximate the first reservoir. The methods include locating a first reservoir on a surface of the apparel; and passing a first dye from a first opaque portion to a transparent or semitransparent portion. Passing the first dye from the first opaque portion to the transparent or semitransparent portion comprises inflating a first air pouch.