Technical garment, the sailor's shirt must be close enough to the body while allowing the movement necessary for maneuvers, and the sleeves must not exceed the sweater or the jacket that the sailor wears over it.

These constraints explain the technical characteristics that define the royal sailor's sailor's cap: a "boat" collar that is quite open, 7/8th sleeves that stop a little above the wrist, a slightly loose body and slits so that the sailor's cap falls well on the hips.

There are therefore (at least) 2 ways to wear this sailor's cap:

• the "purist" way: go for your size, like Paul on the pictures, and assume the ......
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