pure wool sweaters like these have made it onto the silver screen in naval films like 'Above Us the Waves'

so won't absorb moisture if you keep them in a soggy locker and nor will they turn everything black

Although only a handful remain in service today

particularly in fog

basically anything where you want to keep your head warm and dry

Dr Crabtree's Patent Observatory Magnifier KITCHENWARE pure wool sweaters like theseBelieved by some to have been designed in 1804 by the legendary British inventor and polymath Joseph Crabtree, the functional simplicity of his brass and glass domed "Observatory" magnifier has never been surpassed or needed modification. Magnifies about 3x. Diameter 2", height 1".