Call it the Lennon Effect Anything he touched became popular. Even the Greek fisherman's cap was an instant hit when John wore one, and now it's back, thanks to designers (and your local army surplus). Jake and crew go full nautical by pairing their caps with peacoats. (From left) _On Grant (bottom): Peacoat, $995 by Kent and Curwen Turtleneck, $860 and cap by Gucci_ _On Tom: Peacoat, $2,000 by Dior Homme Turtleneck, $1,000 by Brioni Cap by DPC_ _On Jack: Peacoat, $1,750 by Ron Herman Denim Turtleneck, $670 by Gucci Cap by Aegean at JJ Hat Center_ _On Jake: Peacoat, $2,700 Turtleneck, $670 and cap by Gucci_
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