I wish I could grow outdoors. You can grow some serious trees. Build a Soil sent me a 65 gal fabric pot that I didn't order awhile ago. I think they are trying to tell me something, lol.
I purchased 3,5 and 7 gallon smart fabric pots.
Ended up using all the 3s, some of the 5s ...... none of the 7s (too big for my 2 x 4 tent).
I've concluded the smart pots are a waste of my money, I'm growing in coco so might as well just use cheap plastic pots and the fabric absorbs a lot of water making them really heavy to drag around. I've got some 25 gallon concrete pots outside, again too heavy they've got tomatoes in.
If you look at all the agricultural farmers, they're all growing everything in plastic bags, minimum cost and no excess weight.
These guys are growing in massive warehouse sized poly buildings in the jungle near me, thousands of 8' pepper plants in 3 gallon plastic bags.
IMHO it's a waste buying stuff before you've actually had a go and seen what suits you and your growing area.