Which sporting goods product innovation sold over 1 million units in its first year despite initial skepticism from industry experts, creating an entirely new product category that competitors rushed to copy?

The sporting goods industry has seen revolutionary product innovations that transformed how athletes perform and consumers engage with sports. From breakthrough materials to smart technology integration, certain products have defined new categories and captured massive market share. Test your knowledge of game-changing sports retail products that disrupted their categories and changed how we think about athletic gear.

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Under Armour's original moisture-wicking compression shirt (1996)
Nike Fuel Band activity tracker (2012)
Vibram FiveFingers minimalist running shoes (2005)
Callaway Big Bertha oversized golf driver (1991)