Black, 100% cotton ball cap. This hat is amazing! It has independent under-the-brim switches for White and Red LED Lighting options along with independent battery packs. It'll keep you cool during the day, and illuminated at night. Button-less design is comfortable, even while wearing a headset!

6 LED design for task and distance lighting

2 red LEDs under brim for task lighting/preserve night vision, 12 lumens, 13 meters light field

2 white LEDs under brim for task lighting - 24 lumens, 13 meters light field

2 LEDs in the brim for distance and overhead lighting, 21 lumens, 22 meters light field

68 hours run time

Separate switches and battery packs for red and white and red lighting optionsT