SEA and SKY MICH2000R Helmet, Action Version, Tactical Helmets, Field Operations CS Helmet MICH2000R action version of the tactical helmetChoose lightweight, modular design better protect your head Super ABS Material size:22-24 inch Using edge technology to standardise the appearance consistent with the original product 0.59 inch wide thickening Chin belt High density matte spray paint process, reflect light rate reaches the minimum value ACH standard radian can be used in conjunction with the make use headphones