I haven't tried it yet for my lumbar area, but I'm surprised at the "indoor" feel of these beautifully made cushions. Piping adds a nice touch. One of the few outdoor item I'm not allergic to, so very pleased. I bought ivory and they're beautiful.

Update: these got mouldy very quickly so I advise not keeping them outdoors whenever possible. I got white and grey. The larger grey ones are totally fine. I had to throw the white out after only one season. Not very sustainable.