Its a cloth blended with Polyester and cotton.
The origins of polycotton began in the 1950's when scientist discover the synthetic recipe for Polyester. The polycotton fabric blends the two taking the best of both qualities. Soft and light like cotton. Wrinkle resistant and easy cleaning of polyester.
The fabric you are asking about is called knit or fleece. Fleece is the original type of fabric used for hooded sweaters, using real lambs wool, but it now simply a name of a fabric used in the garment.
Poly Cotton is the best durable mix, 65% Polyester 35% Cotton, (Polycotton) standard everyday fabric
it can be used for mainly anything: shirts skirts bed sheets it is very popular as polyester is a non-crease fabric, whilst cotton is soft, comfortable and breathable.
Polycotton is 51% cotton mixed with 49% polyester fibers.
polycotton
the fabric weave by dyed yarn called yarn dyed fabric
polyester is a synthetic fabric.
polyester is a synthetic fabric.
It's woven.
Sweatshirt fabric is typically cotton, but may include blends of other fibres.
The work of textile designer is to innovate a suitable weave with all desirable properties , so that the design ,after conversion to fabric should posses all properties that a a quality fabric has. He simulates the fabric prior to production and decides based on that.