A headset cord holder comprises a body and a first groove built into the body configured to receive and releasably hold a headset cord. In some embodiments, the first groove has a diameter less than or equal to approximately 2 mm. In further embodiments, the body is integrally formed within the teeth of a zipper. In some embodiments the body comprises one or more of rubber, plastic and metal. In some embodiments, the body comprises one or more of stamped metal and molded metal. In further embodiments, the body comprises molded plastic. In some embodiments, the body comprises one or more additional grooves configured to receive and releasably secure the headset cord.

A headset cord holder comprises a body and a first groove built into the body configured to receive and releasably hold a headset cord. In some embodiments, the first groove has a diameter less than or equal to approximately 2 mm. In further embodiments, the body is integrally formed within the teeth of a zipper. In some embodiments the body comprises one or more of rubber, plastic and metal. In some embodiments, the body comprises one or more of stamped metal and molded metal. In further embodiments, the body comprises molded plastic. In some embodiments, the body comprises one or more additional grooves configured to receive and releasably secure the headset cord.

A closure or fastener is provided for apparel, shoes, equipment, and other applications. The closure may have a female component having a receiving area and a male component having a locking portion. Either or both the male component and female component may have a notched appearance to provide additional flexibility and comfort to the closure. Flanges on the male components and the female components may facilitate off-registration engagement of the closure system. Textures present or absent in the closure system may permit or prevent sliding by the male components and female components when the closure is engaged.