The Captain Hat is a craftable Hat Item in the Shipwrecked DLC. It is found in the Nautical Tab, requires a Science Machine to prototype, and a Straw Hat, Bone Shards and Seaweed to craft. It lasts 2 days, and a Sewing Kit will restore it to full Durability.
When worn, it causes Boats to lose their durability at half rate while sailing. It has no effect on the durability lost when the Boat hits Waves or is attacked. It also has no effect when the player character is not driving a boat. In addition to being crafted, it can also be found in Steamer Trunks, Blue Whales and X Marks the Spot treasure chests.
Due to being a relative cheap item to craft, it may be practical to use it instead of entirely relying on Boat Repair Kits or crafting new Boats, especially in long expeditions where the player is away from or lacks the time to gather necessary supplies.
The Captain Hat is also included in the Hamlet DLC, however, it cannot be crafted as some of its materials are unavailable. Instead, it can be bought for 20 Oincs at the The Sow's Ear Hat Shop in the Pig City.