If possible, please fly to China and have a face-to-face meet with the manager+sales representative, that helps you sleep well in the night 🙂 Money counts but it doesn’t means everything, you should find a responsible manufacturer, I think you can feel it while communicating. Never forget your products, and keep a solid relationship with your manufacturers. There are many online stores now runing a business called Dropshipping, They will launch a good-looking website, publish ads on facebook to target audiences that have interests in such goods, and when the website gets sales they will order from Chinese shopping platforms (like Aliex press and Dh gate) to ship the goods dirtectly to their customers, same goods, 5–10 times of actual price.
Packaging is important, as you are runing on local store networks, decorations are something that needs further attention, customers will step into your store because they love its style, otherwise they will just run away.
Packaging your socks & decorate your store.