Rotational Protection
Rotational Impact Protection
Technology designed to reduce rotational forces on the brain during oblique impacts. Rotational forces are a leading cause of concussions and traumatic brain injuries in skiing.
MIPS
Multi-directional Impact Protection System. A low-friction layer between the helmet liner and head that allows 10-15mm of relative sliding motion during angled impacts.
Koroyd
Welded polymer tube structure that crumples on impact to absorb energy, including rotational energy. Integrated into the helmet liner itself.
WaveCel
A collapsible cellular structure that flexes and glides to absorb rotational and linear impact energy. Used exclusively in Bontrager helmets.
None
No dedicated rotational impact protection system. Helmet relies solely on EPS foam for linear impact absorption.
Strongly recommended to choose a helmet with rotational impact protection, especially MIPS which is widely available and proven. The small price premium is worth the added protection against concussions. This is the single most important safety advancement in helmet technology in recent years.











