What is a sweatshirt?
Sweatshirt — This is a spacious and dense knitted sweater with long sleeves, designed to keep you warm and for everyday wear.

The historical origin of the term is linked to the name of the writer Leo Tolstoy, who wore a long, loose men's shirt (kosovorotka) untucked. In modern Russian, the meaning of the word has transformed and become a collective term for sports sweaters.
Traditionally, the garment is made from a dense knit fabric—flute (brushed or looped back) or fleece. Key design features of a classic sweatshirt include elastic cuffs and a wide rib knit hem for wind protection.
Main types
In modern fashion, the term "sweatshirt" is an umbrella term that encompasses several distinct styles.
sweatshirt ( sweatshirt ) is a basic model without a hood, pockets, or fastenings, with a round neckline. It often features a distinctive V-shaped stitching under the collar.

Hoodie ( hoodie ) — a model that always comes with a hood. It's pulled over the head and often features a large kangaroo pocket on the stomach.

Zip hoodie ( zip-up ) - a sweatshirt with a hood and a through zipper along the entire length of the front panel.
Bomber (in knitted version) - a jacket with a zipper or buttons, a stand-up collar, without a hood.
What to combine with
Smart casual style. A basic, solid-color sweatshirt in a neutral shade (gray, beige, black) is worn under a structured, straight-cut jacket, paired with classic trousers and loafers.

Sport-chic and athleisure. A set of a sweatshirt and joggers made of the same material (a suit made of fleece) is complemented by chunky sneakers, a baseball cap and a long classic trench coat.
Contrast of textures. An oversized hoodie is worn over a lightweight silk slip dress or paired with a pleated midi skirt and chunky lace-up boots.
Layering of outerwear. A hoodie with the hood pulled out is worn as a base layer under a voluminous wool coat, leather biker jacket or puffer vest.