All our baskets are braided with Rattan, which is a sustainable material from Asia. It is a very solid and weatherproof material. In the old days it was called rattan. Indoor rattan baskets need no maintenance. The basket can be sprayed through and then with a soft brush given Vaseline oil. It maintains the basket and promotes color. For outdoor use, it is good to give them an outdoor oil a few times a year. The should be lifted slightly up from the moist ground so that it does not stand directly on the ground.