Most wicker patio furniture is resin these days and for good reason. It's weather-resistant, comes in a variety of colors and styles, and you don't have to worry about getting splinters as you do with wicker.
Wicker is the word used to describe grasses, plants and vines woven to create furniture. Wicker is usually made of willow, bamboo, reed and rattan. The woven materials make a beautiful pattern. Wicker provides a classic look for outdoor furniture.
Because it is made of plant material, wicker will degrade over time. Rain, snow, sleet and moisture in general will cause it to rot. Insects can damage wicker. Heat dries out wicker and repeated exposure to cold will make wicker brittle. It can also splinter. These issues often point people toward caused many people to choose resin. Resin is a natural or synthetic material woven to look like wicker. Underneath the resin, you'll usually find an aluminum frame. Resin wicker won't rot when exposed to moisture, it's not prone to insect damage, heat doesn't dry it out, cold doesn't make it brittle and it's UV protected to keep the sun from fading the color. It's durable and you don't have to worry about it splintering. You don't have to paint or treat it regularly to keep it looking like new. And you don't have to invest in covers to protect it from the elements. You still get the classic look of wicker. To top it off, it's less expensive than wicker.