Nike Dri-Fit Head Tie 2.0 Headband by Nike - 19,95 €
Z-Bo on Twitter: "According to @mikescott, @Nike and @NBA have banned the ninja-style tied headbands that became so popular last year. According to Scott, Nike said they appeared “unprofessional”. 🏀 Bad move
Amazon.com: Nike Dri-Fit Head Tie 2.0 (Black/White) : Clothing, Shoes & Jewelry
Official Game Play Headband of Ninja - Walmart.com