Abstract: An anti-slip patch can fit into a shoe heel to prevent socks from slipping into the shoe. The anti-slip patch can cover an area of the vertical inner heel cap of the shoe with a hook surface or similar material that can prevent slippage of a sock. The hook exposed surface of the anti-slip patch can become an integral part of the vertical inner heel cap lining of the shoe and can securely fasten on to the vertical heel part of any type of sock when worn in the shoe. The snug fit of the foot inside the shoe ensures continuous pressure being applied to the sock for it to remain adhered to the exposed hook material of the anti-slip patch, keeping the sock securely locked in its desired comfortable position on the foot while being worn in the shoe in both dry and wet conditions.