The NBA banned the 'ninja-style' headbands. They were awesome while they lasted. - The Washington Post
NBA Basketball dri-fit head tie Bandana Ninja-style headband 100% authentic sport tennis | Shopee Philippines
White Generic Ninja Headband | Play Fanatics
Ninja Headband Tie Sports Sweatband Tennis Running Gym Fitness Basketball Yoga Hair Band Pirate Hat Headwear Men Women Elastic|Women's Hair Accessories| - AliExpress