As far as I know, foldable sunglasses is quite convenient which could enable you to fold them into a smaller item, and it could be much for portable and solid. So, I personally find them very awesome and worth buying. Indeed, Walmart vision center has got a lot of foldable sunglasses on offer because the demand for foldable sunglasses is large and they would not miss such a good opportunity to make a profit. Or you might as well have a look at Alibaba.
Yes, walmart can provide foldable sunglasses. Its biggest feature is to be folded, bringing us convenience and safe. There are many folding Reading glasses at Walmart, and the price of each folding reading glasses is different, ranging from $20 to $60 in average. You could go to their online store and have a look. Then you can go to choose one type, basing on your needs and favors.
Eh, just like retro sunglasses, walmarlt offers nothing about them when I entered fordable sunglasses on walmart site. I guess that you may be find them at walmart vision center. And there are still many other stores and online shops provide foldable sunglasses, such as alibaba, even ray-ban. Alibaba is also a good site which offers many kinds of fordable sunglasses. Promoting will be presented during Christmas day, I think you can get a deep discount in this month if you buy fordable sunglasses online.