Our outdoor bar stools are made using vintage-style apple crates, they are raised off the ground with rubber feet to prevent the wood from sitting on wet surfaces, the lids are hinged and upholstered in 12-ounce canvas which is a Polyester / Cotton mix. This fabric is perfect for use outside due to it being flame retardant, water, rot and mildew resistant. The barstools open up which makes them perfect for tidying away garden tools, outdoor toys, logs for the fire pit, or barb que utensils.