Three Posts Put on your flip flops, kick up your feet, and unwind with this handy ottoman, which makes the perfect match for your Adirondack chairs. Made in the USA from plastic, this ottoman is designed for year-round use, and is UV-, water-, and weather-resistant. Its sloped, slatted design is meant to blend with your Adirondack chair, and it also allows water to drip right through, instead of pooling. Assembly is required for this design.