Shinli' Niintaih sources materials to reflect historical Gwich'in use, including those that come directly from the land. She ensures the best quality of raw materials for her creative practice and processes many of them by hand. She picks dinvi' (silverberries) for the seeds, collects tsit cho (porcupine quills) from her home territory, tans aadhoh (hides) with her family, and she sources a'tthan' (dentalium) shells and naagaii (beads) from around the world. Her material use is informed by her research visiting Gwich'in collections in museums based in Canada, the US, and England.