This system offers 360 degrees of adjustment to provide a perfectly tuned and custom fit

Multi-Directional Impact Protection System. Designed to protect against rotational violence to the brain caused by rotational impacts.
Rotational motion (like how you fall) can cause brain injuries. The yellow low friction layer allows the helmet to slide 10-15 mm in all directions, reducing rotational motion to the brain during impact.

Lightweight dial fit system for a fine tuned adjustment.

EPS is the industry standard for helmet protection. 99% of snow, skate and bike helmets are made of this. It's a hard expanded polystyrene foam that offers great protection and is lightweight. It is however designed for single impacts. When the energy is absorbed by the EPS it causes a break. If you have a big fall you may need to replace the helmet as its shell may well be cracked and the protection compromised.

This is the most advanced of the construction methods which make the lightest and thinnest helmets without compromising any protection. Zip Mold helmets offer the same level of protection as Thin Shell (EPS) helmets but in a lower profile design. A thin PVC shell is liquid injected with Zip Mold foam which gives a seamless, one piece construction helmet that sits incredibly low on your head and feels like nothing's there.