Which sports retail innovation first implemented widespread use of 'smart mirrors' that allow customers to virtually try on athletic apparel and view performance stats without changing clothes?

The sports industry has been transformed by technological innovations that enhance both athletic performance and the retail experience. Smart equipment with embedded sensors and connectivity features has created entirely new product categories and shopping experiences. Test your knowledge about a groundbreaking retail innovation that changed how athletes shop for and interact with their performance gear.

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Nike's House of Innovation flagship stores
Adidas Virtual Fitting Experience
Under Armour's Connected Fitness retail concept
Lululemon's interactive mirror technology stores