A varsity jacket, also known as a letterman jacket, is a classic American jacket with a wool body and contrasting leather sleeves, featuring ribbed cuffs, collar, and waistband, a snap-button front, and often a large chenille letter or emblem representing a school or team, symbolizing athletic achievement and school spirit with personalized patches and embroidery. 

Key Characteristics:

Materials: Traditionally wool (or fleece/twill) for the body and leather (or vinyl/satin) for the sleeves, with ribbed knit trim.

Design Elements:

Letter/Emblem: A prominent chenille letter (like an "H" for Harvard) or school logo on the chest.

Color-Blocking: Contrasting colors for the body and sleeves.

Patches: Additional embroidered patches, team names, or mottos for personalization.

Closure: A snap-button front.

Trim: Ribbed knit collar, cuffs, and waistband for a snug fit.

Origin & Symbolism: Originated from Harvard athletes in the 1860s as a way to signify athletic achievement, evolving from letter sweaters into the iconic jacket.

Variations: While classic designs use wool and leather, modern versions offer diverse materials like polyester satin, cotton fleece, and faux leather.

Common Names: Varsity Jacket and Letterman Jacket (especially for high school).

In essence, it's a durable, personalized jacket that celebrates school pride and athletic success.