SPEED OVER SQUISH.While you're dodging past struggling enduro riders on your favorite local climbs, the Catalyst's ultralight design and 18 vents will leave you cool and dry as you push through hard tempo efforts. Plus, a solid In-Mold shell pairs with MIPS to provide you with protection that you'll forget about when you don't need it. MIPS, or Multi-Directional Impact Protection System, refers to the now-ubiquitous Swedish technology applied to the Catalyst in the form of a thin inner basket. This basket lets the helmet's shell rotate independently of your head upon impact in an effort to absorb brain-damaging rotational energy created in certain crashes. Bell's FloatFit and No-Twist Tri-Glide straps give you ample opportunity to get the fit you need, so you can focus on holding your lead on the pack. FEATURES Stay safe and speedy with this XC-specific helmet MIPS technology minimizes the effects of certain crashes In-Mold shell dissipates impacts the old fashioned way Wealth of vents keep you cool and dry during hard climbs No-twist straps and FloatFit design let you customize fit Removable visor lets you shave more weight on race day