Site Breathable Safety Helmet. Our site thickened crash helmets are made of polythene plastic in red, yellow, white, blue and orange. It measures 10.63 x 4.72 x 4.72 inches. The product housing is durable without compromising weight, and the foam padding inside provides an extra layer of comfort. Products are professionally certified, you can rest assured to use. There are vents on both sides, the design is safe and ensures excellent heat dissipation performance, excellent quality, no fear of wind and rain invasion, to ensure your comfortable and stable working experience. Inside the design of cotton sweat absorption surface, and high-strength shock cushion, to ensure the safety of your construction, but also print your own logo. The prices for 300pcs or over are based on ocean shipments.