Synthetic wicker or resin wicker can be made of Polyethylene, Nylon or PVC and is usually preferred for outdoor use due to the excellent resistance to the elements. However, for indoor use, especially in the dining room, you can opt for natural wicker made from organically sourced bamboo, cane or reed grass.
There’s hardly a difference in the finish or the look of the final products. But organic wicker has a bohemian touch to it. Tiny imperfections in the bamboo and the grass that make them authentic. Take them outdoors and they will start to brittle out though. So, as long as you don’t yearn for a meal under the stars, organic wicker indoor chairs will work just fine.
If you are opting for synthetic instead, then be aware that not all materials are built the same. Polyethylene is more durable than Polypropylene, which is a cheaper material. Recycled rattan sounds great on paper. But recycling often compromises the durability of the material resulting in a weaker furniture piece.