2xu is an Australian product, and the genuine product is definitely better than aun's. If you make a mistake, you can only buy fake socks with better quality than ordinary socks, but not as good as Ang's socks, because the process manufacturing, material grade and sales price of the two brands are relatively high, so the simulation degree is relatively high, and it is difficult for people without professional knowledge to distinguish them! The other two brands are basically the same in material selection and technology, and their function is indeed antibacterial and deodorizing (but ordinary socks are also antibacterial and deodorizing in publicity, which is actually out of reach). It's just that 2xu came out earlier, and aviation personnel are wearing it, so 2xu has a better reputation in the industry than aun!