The Lea Hoyt papers include biographical materials, textile design drawings executed in a variety of media, photographs, printed materials, and samples of products created using Hoyt's designs.

Biographical materials include Hoyt's diploma from the New York School of Fine and Applied Art, copies of her school transcript, clippings about her, and correspondence regarding the Tiffany Foundation award. This series also includes a letter from Vera Neumann.

The design drawings are comprised of drawings in a variety of media. Although some depict flowers and animals, the majority feature geometric shapes, patterns, and abstractions. The drawings do not indicate how the design would eventually be used, nor are the items dated. The collection includes one example of Hoyt's student work, an advertising illustration for R. H. Macy's department store.

Photographs and slides depict artwork, women's apparel, and Hoyt displaying her work in a gallery and working on batik designs outdoors at her home in Florida. With the exception of a black and white photograph of Hoyt dated 1964, all photographic materials date from the late 1960s to the early 1990s.

Printed materials and textiles consist of finished products incorporating Hoyt's designs. These include greeting cards, paper napkins and plates, batik-patterned wrapping paper, and a fabric sample. The series also includes commercial paper goods catalogs from the 1970s featuring Hoyt's work. Textiles employing a lady bug motif may have been designed by Hoyt, or may represent a gift from Hoyt's former employer, Vera Neumann.