wool construction; rear adjustment strap

ROCN SUBMARINE: Stands for the Republic of China Navy, the official designation of Taiwan's naval force.

ROCS Hai Pao (SS-792) is a World War II-era Balao-class submarine operated by the Republic of China Navy (ROCN) in Taiwan. Originally commissioned as the US Navy's USS Tusk (SS-426) in 1946, it was transferred to Taiwan in 1973 and remains one of the oldest active military submarines in the world.

Emblem: The center features the ROC (Taiwanese) naval insignia, showcasing the "Blue Sky with a White Sun" surrounded by gold submarine warfare dolphins and an anchor.

Scrambled Eggs: The gold embroidered leaf embellishments on the brim indicate that this hat is designated for senior officers (typically Commanders and Captains).

Here is the translation of the text on the label from top to bottom:首鮮羊毛70 : A 30 (快紫): Prime Wool 70% : Acrylic 30% (Fast Purple / Quick Purple color)款式 (Style): 紳美 (Shenmei / Elegant Beauty)規格 (Specification / Size): 大 L (Large L)手工優越 (Superior Handcraft / Workmanship)221/2 (Likely a style, batch, or measurements code)

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