1. Protection Made of highstrength nylon and ABS plastic, with a frosted surface design and thick shell, it can resist external influences and is suitable for outdoor activities such as CS games. It has been specially designed for outdoor activities like Air Force, Polo, etc. 2. The helmet pad is made of high density slow rebound memory foam, which provides maximum comfort and stability. Double layer design, with upper buffer structure and lower support structure. and comfortable, with strong impact resistance. 3. ADJUSTABLE CHIN STRAP Equipped with an elastic BOA adjustment system, it ensures a tight and comfortable fit with the wearer's head, providing a comfortable wearing experience. It's easy to adjust the head circumference. 4. Comfortable and Breathable The top of the helmet has a triangular opening design, which can increase air circulation and improve breathability. The distance between the heads can be adjusted from 56 60 cm. Side rail 3.0 is suitable for most types of helmet rail accessories (such as tactical helmet headphones), and the builtin NVG mount is compatible with most NVG mounts. The outer ring plate allows the installation of tactical equipment