The brand new S-shape Sauna Backrest is made of natural wood (Canadian Premium Hemlock), has no stains, is non-toxic and wear-resistant, and is high temperature resistant.
This ergonomic S-shape curved backrest is elegant and comfortable fitting any sauna room. Loading capacity 300 lbs
Using the wood backrest to keep your back away from the infrared heater in the sauna room, gives you the safest and most relaxing way to enjoy the infrared sauna.
Traditional sauna-Lean on the curved backrest is more relaxing and comfortable than on the traditional sauna bench.
No assembly is needed.
Overall Dimension (Medium): 20.5"(L) x 13.0"(W) x 2.6"(H)
Overall Dimension (Large): 26.0"(L) x 16.6"(W) x 2.6"(H)

Size Shopping Guide:

For ergonomic reasons, it is recommended that individuals measuring 6'3" or taller or weighing over 200 pounds to opt for a generously sized 16.6-inch backrest.
Otherwise, 13-inch backrest is sufficient.
Furthermore, please note that the 4-Person Outdoor model is better suited for a 13-inch backrest, otherwise the backrest will protrude beyond the seat panel. This applies to the Purity 1-Person model as well.

Ergonomic Sauna Backrest