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.

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.

A slider cover includes a body having a first end and a second end opposite the first end. The first end and the second end of the body are arranged in a direction of travel of the slider cover. The slider cover includes a first slider-receiving area at the first end. A centerline of the first slider-receiving area extends at a non-parallel angle with respect to a horizontal plane of the slider cover. The slider cover also includes a second slider-receiving area at the second end. A centerline of the second slider-receiving area extends at a non-parallel angle with respect to the horizontal plane of the slider cover.

A garment, preferably a protective vest, which is adjustable in its size is provided. According to one approach, at least one outer zipper having two rows of teeth is provided, wherein the garment has a first size in a closed state of the outer zipper and a second size in an opened state of the outer zipper, wherein the first size is smaller than the second size, and wherein, in the opened state of the outer zipper, the rows of teeth are held together at a distance by material covered by the outer zipper in the closed state of the outer zipper. Other embodiments include a zipper arrangement.

A garment, preferably a protective vest, which is adjustable in its size is provided. According to one approach, at least one outer zipper having two rows of teeth is provided, wherein the garment has a first size in a closed state of the outer zipper and a second size in an opened state of the outer zipper, wherein the first size is smaller than the second size, and wherein, in the opened state of the outer zipper, the rows of teeth are held together at a distance by material covered by the outer zipper in the closed state of the outer zipper. Other embodiments include a zipper arrangement.

There is provided a slide fastener with a separable stop including a retainer pin and a separable pin. The separable pin has a projection configured to be engaged with a fastener element. The slider includes a raised portion. For example, the raised portion extends on a lower surface of the upper plate rearward from a periphery of the guide post and is raised from the lower surface of the upper plate toward the lower plate. The raised portion of the slider and the separable pin have respective contact portions configured to come in contact with each other in a moving direction of the slider. At least one of the contact portion of the raised portion of the slider and the contact portion of the separable pin is provided with an intersecting portion obliquely intersecting with the moving direction of the slider.

Various implementations include a slide fastener that has a blocking element on one stringer that prevents engagement compatibility with standard elements on the other stringer. For example, at least one blocking element is coupled to a first stringer, and first and second blocking coupling elements are coupled to a second stringer. The contour of the blocking element and the contour of the blocking coupling elements are different from the contour of the standard elements on the stringers such that the standard elements do not engage with the blocking element or the blocking coupling elements in an alternating arrangement. However, the contour of the blocking element and contour of the blocking coupling elements allow for the engagement of the blocking element with the blocking coupling elements in an alternating arrangement.

Various implementations include a slide fastener that has a blocking element on one stringer that prevents engagement compatibility with standard elements on the other stringer. For example, at least one blocking element is coupled to a first stringer, and first and second blocking coupling elements are coupled to a second stringer. The contour of the blocking element and the contour of the blocking coupling elements are different from the contour of the standard elements on the stringers such that the standard elements do not engage with the blocking element or the blocking coupling elements in an alternating arrangement. However, the contour of the blocking element and contour of the blocking coupling elements allow for the engagement of the blocking element with the blocking coupling elements in an alternating arrangement.

A smart zipper includes a zipper, a voltage generator, a voltage detector, and a processor. The zipper includes a first left tooth and a first right tooth. The first left tooth is electrically connected to a first left wire and is supplied with a supply voltage. The first right tooth is electrically connected to a first right wire. The voltage generator generates the supply voltage. The voltage detector detects the voltage of the first right wire to generate a first detection signal. The processor determines first coupling information about whether the first left tooth is electrically connected to the first right tooth, according to the first detection signal.

A smart zipper includes a zipper, a voltage generator, a voltage detector, and a processor. The zipper includes a first left tooth and a first right tooth. The first left tooth is electrically connected to a first left wire and is supplied with a supply voltage. The first right tooth is electrically connected to a first right wire. The voltage generator generates the supply voltage. The voltage detector detects the voltage of the first right wire to generate a first detection signal. The processor determines first coupling information about whether the first left tooth is electrically connected to the first right tooth, according to the first detection signal.