Chefskin BIG & Tall 2x Mushroom White Chef Hat, Adjustable BEAUTIFUL BIG & TALL CHEF HAT MUSHROOM PUFFY BIGGEST SIZE AVAILABLE TWILL FABRIC, REINFORCED, ADJUSTABLE VELCRO ON THE BACK BUY 1 OR 1000 WE ARE THE MANUFACTURERS It can be adjusted up to 26.5 26.9 inches circumference