1. Aleksander, I. 2020. Sweatpants Forever. The New Times, August 6. https://www.nytimes.com/interactive/2020/08/06/magazine/fashion-sweatpants.html
2. Allbirds n.d.a. Our Materials: Trino. Allbirds. Accessed 2 June 2020. https://web.archive.org/web/20190924025736/https://www.allbirds.com/pages/our-materials-trino.
3. Allbirds n.d.b. Our Materials: Wool. Allbirds. Accessed 2 June 2020. https://web.archive.org/web/20190815013820/https://www.allbirds.com/pages/our-materials-wool.
4. Allbirds n.d.c. Stores. Allbirds. Accessed 2 June 2020. https://web.archive.org/web/20190924032504/https://www.allbirds.com/pages/stores.