Lumberjack Clothes
While escorting adventurers from Paterdomus to Burgh de Rott, or refugees from Burgh de Rott to Paterdomus in the Temple Trekking / Burgh de Rott Ramble minigame, you may find some lumberjack clothes dropped by the dire undead lumberjacks of Mort Myre. You will need a Woodcutting level of 44 to wear lumberjack clothes.
Each of these items of clothing provides a slight experience boost when Woodcutting, with an extra bonus for wearing all of them together. Note that lumberjack clothes are untradeable.