A device for adjusting the fit of a garment may include a track having a plurality of track teeth; and a button including a shoe designed to removably engage with the track; a spring operatively engaged with the shoe; and a plurality of button teeth operatively attached to the spring. When the spring is not compressed, the plurality of button teeth may be designed to removably engage with the plurality of track teeth, and when the spring is compressed, the plurality of button teeth may be designed to disengage from the plurality of track teeth. The device may be attached to the waistband of a garment, resulting in a garment with an adjustable sized waist.