Normal cotton or thin fabric socks do not meet the islamic requirements for performing Masah (wiping over socks during wudhu). According to scholars, socks must:
1. Fully cover the ankles.
2. Be durable enough to walk a long distance (about 3 Shar‘i miles) without tearing.
3. Be free from large holes.
4. Stay upright on their own without needing to be tied or fastened.
5. Prevent water from seeping through.
Regular socks are usually too thin, absorb water, and tear easily - making them unsuitable for Masah.