Adirondack chair
The Adirondack chair is an outdoor lounge chair with wide armrests, a tall slatted back, and a seat that is higher in the front than the back. It is named after the Adirondack Mountains. The original design featured a small number of flat wooden boards, with the seat support combined with the rear legs. Adirondack chairs are now often made by injection moulding and can take any form.
In Canada, this is called a Muskoka chair.