OiYO by Montigo is a brand focused on products for families, particularly busy parents and their children, aiming to simplify everyday life. They offer a range of products for work, school, and play, emphasizing quality and creativity, according to Montigo. OiYO by Montigo offers products like bottles, lunch boxes, and more, designed with chemical-free materials and features like temperature retention, leakproof seals, and multi-compartments.