Sparco CIRCUIT II QRT (GAMING)7 14 business days lead time CIRCUIT II QRT The Circuit II QRT is a wider version of the Circuit QRT which was designed to provide additional head and neck protection. Made from aramadic fiber reinforced fiberglass with all new QRT Technology, the Circuit II QRT features a wider shell to accommodate a larger driver. The Circuit II QRT includes integrated head bolsters to protect the head and deep side bolster for maximum lateral containment. SIZING