The Loop 97.9 Trucker Cap

Established in 1942 as W83C, this legendary Chicago radio station changed its call letters several times before becoming WLUP "The Loop 97.9" in 1977. For the next 41 years it was one of the most popular and influential radio station's in America. It is best known outside of the Chicagoland area as the station that sponsored the infamous "Disco Demolition" Night at Comiskey Park in 1979. • 47% cotton, 28% nylon, 25% polyester • Structured, five-panel, high profile • Flat bill • Snapback closure • Head circumference: 21⅝″–23⅝″ (53.3 cm–60 cm) Size guide   A (inches) B (inches) C (inches) D (inches) One size 20 ½-⅝ 4 ½ 2 ⅝ 7 ½