Buy OSRS Ankou socks
Ankou socks are a rare cosmetic item in Old School RuneScape. They are part of the Ankou outfit, a spooky set that makes your character look like a walking skeleton. The examine text says the socks will make your flesh transparent. Players wear them for style, not for stats, since the socks give no combat bonuses.
These socks are a members-only item. They came into the game on 6 July 2016 as a reward from master Treasure Trails. The drop rate is 1 in 12,765 from a master reward casket, so they are very hard to get from clue scrolls. That rarity makes them a nice pickup for players who collect fashion items or want to finish the Ankou outfit.
Ankou socks weigh 0.5 kg, so they are light and easy to carry. If you want to save bank space, you can store them in the mahogany treasure chest of a costume room in your player-owned house. The item can also be traded on the Grand Exchange, with a buy limit of 4 every 4 hours. The item ID is 20107.