Nike Headbands 6-Pack Assorted Black & White Adult Unisex headbands. The Nike Headbands feature silicone grips to hold your hair and stay in place so you can focus on being your best with whatever you're doing. Benefits Stretchy elastic band provides a comfortable fit. Silicone grips keep the band in place. Product Details Circumference: 17" Width: 0.5"/1.15cm Materials: 70% polyester/20% rubber/10% silicone Black/White Smoke free home Bundle & Save Accepting reasonable offers