Uzushiogakure had close ties with Konohagakure, due to Uzushio's Uzumaki Clan and Konoha's Senju Clan being distant relatives. Because of this, all the flak jackets worn by the chūnin and jōnin-level shinobi of Konohagakure bear the crest of Uzushiogakure, symbolising the strong friendship between both villages. This symbol is also emblazoned on some of the shoulders of the outfits that the Konoha shinobi wear underneath the flak jackets.