Poly lumber is made from high-density polyethylene (HDPE), UV resistant pigments and foaming compounds. Poly is extrememly resistant to to all types of weather conditions such as rain, snow, salt water, sun and ice. The characteristics of poly are both attractive and pleasant to the touch. Poly lumber will not absorb moisture and fades very little if at all over time. Your poly furniture can live outside year-round and will require no maintenance, EVER.