ATAIRSOFT BJ Type Tactical Fast Helmet w/ Protective Goggles Low Price Version Black Standard Shipping 7-15 days to USA / Expedited Shipping takes 3-6 days Ship from Hong Kong China sizeHead circumference 56-59 cm 22-23 inch Collision, preventing the branches, the leaves hit, breathable, speed Please measure your head before make an order Material : ABS, about 550g