Atomic Four AMID helmet is a hugely popular model from the Atomic Four family, which brings a totally fresh approach to all-mountain helmet design. The unique combination of AMID technology and Holo Core offers up to 40% more impact protection than industry safety standards – this helmet will keep you perfectly protected anytime, and in any terrain. The helmet’s position on your head and how snug it fits can be fine-tuned with the 360º Fit System. Besides an urban-inspired, low-profile design, the Four AMID helmet also offers a removable liner and goggle clip, which let you ride with beanie and goggles underneath the shell if you want.

• AMID: The Atomic Multi-Directional Impact Deflector is a revolutionary dual-density foam system that is fixed to helmet's core and free to move in all directions. Provides up to 40% higher impact protection than industry standards.
  
• Removable and Washable Full Cap Lining
• 360° Fit System
• Holo Core: This unique 'egg-carton' construction creates an extended crumple zone for maximized shock absorption. It also comes with ventilation holes so it's cooler and lighter. This means up to 30% higher impact protection than industry standards.
• Hybrid In-Mold Construction: Combines the best of both worlds in helmet construction. The upper is made from ABS hard-shell for extra stability and protection. The lower is in-mold to keep the weight down.
• Aircon Venting: With wider and more air channels through each layer of the helmet, hot air has room to escape and adjustable vents actively suck heat away from the head.
  
• Audio Compatible Ear Pads
• Live Fit: Live Fit pads surround your head 360° and mold to your head shape for an instant individual fit. They also dampen low-level impacts before the shocks can reach your head.
  
• Helmet Bag
• Removable Goggle Clip
• 3D Molded Ear Pads