Bell z20 aero helmet mipsstill improving their almost flawless designs after 60 years in the industry, bell have outdone themselves once again with the mips assisted z20 helmet, now with intelligent aerodynamic shaping to make the wind work for you as it blows'. '.strtoupper('m')ips detailed in full below works to keep your head still in the event of a collision to protect it from damage, and its just one of the amazing features on display here'. '.strtoupper('a') double layer of eps foam, alongside mips, reduces the amount of energy directed at your head by dispersing it elsewhere, while also promoting blood flow when youre riding for a significantly more comfortable experience.an essential element when it comes to providing pro levels of protection is to get the fit just right, and the z20 offers this up in spades via the float fit racetrade retention system'. '.strtoupper('j')ust a simple twist of the dial with one hand allows you to adjust how closely the helmet is set against your head, offering support thanks to the cradle system that sits at the heart of the helmet'. '.strtoupper('x') staticreg and xt 2reg padding works alongside 18 vents to keep you sweat free at all times, and the no twist tri glidestrade keeps the straps flat for a new level of distraction free riding.what is mips?mips is a brain protection systemrotational motion can cause brain injuriesthe low friction layer allows a sliding movement of 10ndash15 mm, in all directions, reducing rotational motion to the brain during impactmips adds protectionfeaturesaero optimized shapefloat fit racetrade integrated with mipsfusion in mould polycarbonate shellmipsreg equippedno twist tri glidestradeoverbrow ventilationtradeprogressive layeringtradesunglass guidessweat guidetrade paddingx staticreg and xt 2reg paddingweight 305 gramsvents 18certification ce en1078cpsc bicyclebuy bell protection from chain reaction cycles'. '.strtoupper('t')he world's largest online bike store.