Watch an Overseas Bowling staff member throw the Purple Concept before adding it to your bag.
Overseas Bowling
Storm Purple Concept
Storm Purple Concept
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The Storm Purple Concept redefines how core and cover work together, delivering a level of control and consistency that reactive balls alone often cannot achieve. Part of the SPI Lab Series, it flips the usual design logic: the ARC + Pearl coverstock acts as both the engine and the tires, gripping the lane for continuous motion, while the Radius Core keeps the ball on line without locking up.
Designed for situations where bowlers traditionally reach for urethane, the Concept shines on short patterns and flat, demanding conditions, anywhere you need a smooth, controlled reaction rather than a sharp backend hook. As a two-piece ball with a thick resin shell, it combines the smooth, predictable qualities of urethane with the versatility and driving power of a modern reactive ball.
Shipping and fulfillment
Shipping and fulfillment
Eligible in-stock orders receive same-day fulfillment. Delivery timing depends on the destination and product availability.
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Need help choosing?
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