Zipper and garment having the same

A zipper, comprising:

• zipper teeth,
• a zipper head base for engaging or disengaging zipper teeth, and
• a puller with an end hole,
• wherein the zipper head base comprises:
• a body with a pivotal mounting portion,
• a hook-shaped locking plate with a locking pin, and
• a biasing member,
• wherein 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,
• wherein one hook-shaped locking plate is provided, the locking pin has two pointed ends, and a distance between the two pointed ends exactly spans one tooth of the engaged teeth.