Features：
1. Material:Built-in adjustable cushion pad, anti-shock buffer.
2. Rail connection system:allow fitment of compatible accessories
3. The occiput dial adjustment system:makes the adjustment strap tight and comfortable to wear
4.Product accessories: 1 helmet body, 1 set of EPP cushions (5 pcs), 2 sets of goggle swivel clips (6 pcs), 1 WING-LOC adapter, 1 Picatinny adapter, 1 multi-function device adapte
