Spider silk

Spider silk is obtained as a 100% drop from all Giant spiders. Two known exceptions are the level 57 Giant spiders, which do not drop anything whatsoever, and the Giant spiders in the Stronghold of Security. It is not a drop from regular level 1 Spiders. With 24 Crafting, you can make full set of spider silk robes. Crafting one piece of silk gives 12.5xp. This silk does not need tanning. This material makes the second best magic robes available to free players, after Batwing equipment.

Spider silk items
Spider silk can be made into Spider silk robes, if the player has a needle, thread and the appropriate Crafting level. It takes 13 spider silk to create a full set of spider silk items.