The Bell Trace Mips Helmet is ideal for everything from fitness rides, adventure rides or just casual rides around the neighborhood. With its easy, approachable style, the Bell Trace Mips Helmet is an all-around performer that gives you lots of options. The Ergo Fit system offers a slim, easy-to-use dial with the option of integrated MIPS, plus No-Twist Tri-Glides provide smooth fit adjustment. Bell Trace Mips Helmet Features Certification: CPSC Bicycle, CE EN1078 Construction: Fusion In-Mold Polycarbonate Shell, Ergo Fit™ No-Twist Tri-Glides™ Sweat Guide™ MIPS® (optional, integrated with fit system) Bell Trace Mips Helmet Specifications Size: XL 58-63cm, Uni 54-61cm Ventilation: 16 Vents Weight: MIPS, 360g (size U)