Mock Neck Shirts
Fashion Terms — the Apparel Search fashion terminology directory
A mock-neck shirt neckline has a high collar that goes all the way around the wearer's neck and is not folded down. This type of collar is typically a knit shirt or sweater. Mock-necks are a long-time favorite way to wear a turtleneck without having to fold it over or deal with wrinkled cloth, but there are many styles of mock-neck sweater collar, including zip-neck and even full zip. A simpler variant of the standard polo neck is the mock polo neck, or mock turtleneck, which resembles the polo neck in the soft fold at its top and the way it stands up around the neck — except that both ends of the tube forming the collar are sewn to the neckline.
A mock-neck shirt neckline has a high collar that goes all the way around the wearers neck and is not folded down.
This type of collar is typically a knit shirt or sweater.
Mock-necks are a long time favorite way to wear a turtleneck without having to fold it over or deal with wrinkled cloth, but there are many styles of mock-neck sweater collar, including zip-neck and even full zip.
A simpler variant of the standard polo neck is the mock polo neck (or mock turtleneck), that resembles the polo neck with the soft fold at its top and the way it stands up around the neck, but both ends of the tube forming the collar are sewn to the neckline.
You may also have interest in reading about turtle neck tops.
Learn more about shirt necklines in our apparel definitions section.
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Why the Mock Version Won Its Place
The turtleneck's problems are practical: a full fold doubles fabric against the throat, traps heat, wrinkles where it folds, and sits high enough to bother many wearers. The mock neck keeps the visual line — a clean, high frame for the face and a layer that works under jackets and coats — while solving each of those complaints with less cloth. That is why it became a wardrobe staple rather than a compromise: for many wearers it is not a lesser turtleneck but the better-judged one, especially in indoor heating and under tailoring, where the lower collar clears a jacket's lapels more cleanly.
Necklines as a Vocabulary
Collar names matter because small construction differences change how a garment wears, launders and layers. Sewn-down at both ends, a mock collar keeps its height wash after wash, where a fold-over collar can stretch, roll or twist. The definitions section's neckline entry places the mock neck among the full family of necklines, and the turtle neck tops term covers the full-height parent style, so a shopper comparing two similar sweaters can name exactly the difference they are choosing between: height, fold, and how the collar is attached.
Common Questions
What is a mock neck?
A high collar that circles the neck and stands up without being folded down, usually on a knit shirt or sweater. “Mock” marks it as the stand-in for a true turtleneck or polo neck: same silhouette, simpler construction.
How is a mock turtleneck different from a real turtleneck?
A true polo neck or turtleneck collar is a longer tube that folds over on itself. In a mock version, both ends of the shorter collar tube are sewn to the neckline, so there is nothing to fold, nothing to wrinkle, and the height sits lower and neater on the neck.
What styles of mock neck are there?
Beyond the plain mock-neck knit shirt and sweater, the collar appears in zip-neck and full-zip styles. The turtle neck tops term and the neckline definition linked on this page cover the neighboring collar family.