When you’re honing your skills and trying out tricks, knowing you’re safe gives you that all-important confidence to commit. The combination of the Hybrid In-Mold Construction, AMID technology and Holo Core offers up to 40% more impact protection than industry safety standards – this helmet will keep you fully protected any time, in any terrain and from every angle.
Live Fit pads mold instantly to your head shape. 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.
| For whom: | Men's/Unisex |
| Head circumference in cm: | 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65 |
| Type: | All mountain |
| Possibility of adjusting the size: | Yes |
| Type of ears: | Soft |
This progressive 360° Fit System enables you to fine-tune the helmet not only to your head size but also your head shape. It´s also height-adjustable for a 100% personalized comfort. 


Aircon is Atomics most advanced cooling system. The Holo Core offers wider and more air channels through each layer of the helmet which gives hot air room to escape and vents actively suck heat away from the head.
The Atomic Multi-directional Impact Defector (AMID) is a revolutionary dual-density foam systemthat provides up to 40% higher impact protection than industry safety standards.
This unique "egg-carton" construction creates an extenden 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 safety standards require.
Magnetic Fidlock Buckle (magnetic buckle) - very comfortable and easy fastening even in ski gloves. When fastening, just zoom in and the buckle will fill itself. To open it, it is necessary to press the fuse as in the classic closing.
The ergonomic and hypoallergenic Full Cap Lining is removable and can be easily washed in the washing machine.