Before the 1930s, athletic wear often consisted of an unstructured sport coat or a sleeveless sweater, which would allow freedom of movement while keeping the wearer relatively warm. In colder, windier weather though, athletes needed a layer that would protect them from the elements while allowing their bodies to move and breathe. Some early windbreaker designs included button-front unlined leather jackets or canvas pullovers, each of which had their own drawbacks, but with the invention of the zipper a new windbreaker was developed which would become a menswear mainstay: the Baracuta jacket.