Is it permissible to wipe over transparent socks, or must they be opaque?

The summary of the answer: It has been established in the Prophetic Sunnah that it is permissible to wipe over the khuffayn (leather socks), and the majority of scholars have analogized jawrabayn (regular socks) to them. The difference between them is that khuff is made of leather, while jawrab is made of wool, cotton, or similar materials. No authentic hadith has been reported from the Prophet (peace be upon him) regarding wiping over jawrabayn; the hadith mentioned in this regard is weak and anomalous. However, wiping over jawrabayn has been authentically reported from a number of Companions, and this is considered a consensus among the Companions.

There is no significant difference between khuff and jawrab in Islamic law, as the need and analogy are equivalent. The majority of scholars stipulate for wiping over jawrabayn that they must be thick and opaque, suitable for walking in, and not transparent, so that their ruling is like that of khuffayn. As for transparent socks, it is not permissible to wipe over them according to the general body of scholars, because they are not equivalent to khuff in meaning and description, and this is the most preponderant opinion.