Zipper and garment having the same

A zipper includes zipper teeth, a zipper head base for engaging or disengaging zipper teeth, and a puller with an end hole. The zipper head base includes a body with a pivotal mounting portion, a hook-shaped locking plate with a locking pin, and a biasing member, the hook-shaped locking plate is pivotally connected to the pivotal mounting portion, and the locking pin of the hook-shaped locking plate is configured to pass through the end hole of the puller. The zipper head base has a locked state, in which the biasing member provides a biasing force to the locking plate, so that the locking pin is allowed to be inserted into the engaged zipper teeth to restrict bidirectional movement of the zipper head base. A garment including the zipper is further provided according to the application.