Collars

A collar is a circular band worn around the neck. It can be a structural or decorative feature of clothing, a component of pet equipment, or a type of jewelry. The term also appears in technical contexts to describe a ring fitted around a shaft or pipe to position, seal, or join parts.

In garments, collars frame the face and define formality. Common shirt collars include turn-down, point, spread, button-down, wing, band, and mandarin. Styles vary by era and culture. Detachable collars were patented and widely used in the 19th and early 20th centuries for easier laundering and changing looks. Materials range from cotton and linen to synthetic blends.

Pet collars are used for identification, control, and safety. Designs include flat/slip collars, Martingale collars, breakaway or safety collars, and training collars (limited to responsible use). Leashes, tags, and reflective materials are common features. Proper fit is important; use the two-finger rule and ensure they are not too tight or too loose. Cats often wear breakaway collars; dogs typically wear flat collars with ID tags.

In jewelry, a collar is a necklace that sits at or near the collarbone, often rigid or tightly fitted. Ranges include rigid metal collars or wide fabric designs.

In manufacturing and mechanical contexts, a collar is a ring fitted around a shaft or pipe to locate components, seal a joint, or limit movement.