All of our woven resin is made from high-density polyethylene. They have been extensively tested to stand up to UV as well as our hot and cold Canadian climate. Our resins will not crack or absorb moisture, they will experience very minimal fading in their lifetime. Structurally our frames are made from high-density tubular aluminum. To clean both your woven furniture, use nothing more than a non-abrasive cloth, water and a mild dish detergent.