Size Adjustable: you can tie the little ribbons built in sweatband to get a best fit, Height (above top of brim) is 4 inches. Brim width is 4.5 inches. Inside circumference measures approximately 21.3-22.8 inches(54-58cm)
chin
J-Pillow Travel Pillow – British Invention of The Year Winner – Chin Supporting Travel Pillows for Sleeping Airplane – Flight Pillow Supports Your Head, Neck & Chin (Black)
BEST TRAVEL PILLOW. Our ergonomic patented 3-WAY SUPPORT SYSTEM keeps your HEAD, CHIN, AND NECK fully elevated and supported while you sleep.