The Tull was until the advent of hard hats the standard head gear for miners in Cornwall. These were felt hats not unlike a bowler. These were steamed into shape and saturated with hot resin making them hard and durable. A very similar hat indeed seems to have been worn by Cornish Fishermen. Paintings and photographs that depict costume that was common before the Sou’wester hat seem to be the same shape as tulls secured by a leather strap under the chin, no doubt to prevent their loss during inclement weather. The premier maker of these hats were Simpsons of Penzance,.
The Gook is a bonnet worn by working women and comes in several forms, often communities had their own version. The most distinctive being a gook made with a flat board which was intended to act as protective headwear.