Knot Theory specializes in silicone rings designed for active lifestyles, offering a range of products including baby band rings, wedding bands, and engagement rings. Their collections feature intricate filigree, floral, hearts, laurel leaf, Trinity, Claddagh, and Celtic designs. Knot Theory's rings boast comfort fit, breathable quality, and metal-free, gemstone-free durability, making them ideal for both men and women.