I personally would say no. I got expensive ones at Lowe's and they only lasted a few months. For AZ sun.
I work at Creative Home Fabrics we sell sunbrella and outdoor fabrics. My opinion is here in Arizona all fabric May fade. The elements here also eat away at the dye and fabric. The difference between out door fabric and sunbrella is they treat the fibers on sunbrella before they weave the fabric. Outdoor fabric they dip the fabric to treat it
I have all types of cushions, even my kitchen glass table with padded, colorful cushions. They are on my porch/balcony. I have had no trouble with color fading. Perhaps it's where, when, you have your cushions. I've not had a problem!
With the arizona summer, I believe almsot all fabric loses its color. But at home does have great collections!
Not for their price! Sunbrella or that type fabric is very expensive. I take most cushions in when i will be away or not using. Mainly for dust in East Valley air, but only one set on a settee swing is tied on, others loose. Either you pay a lot p/cushion or set OR buy inexpensive ones. Walmart and IKEA(had ikea cushions for porch/patio 8 years and still looked good, but were not in direct sunlight) sold them with furniture when I moved.
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