Details Tech Specs Size Chart There's no reason to skimp on comfort and protection while trying to maintain a budget. The Formula benefits from the same technologies that make Bell's road helmets such champions of comfort and safety; this model features the MIPS impact management as well as Float Fit retention system and innovative Sweat Guide liner. Elegant shape, fluid aerodynamics and ample ventilation ensure the Formula's place as a classy all-rounder. Construction: FUSION IN-MOLD POLYCARBONATE SHELL - A PROCESS PIONEERED BY BELL BONDS THE HELMET'S OUTER SHELL TO THE EPS FOAM LINER TO CREATE A STURDIER HELMET. Compliance: CPSC BICYCLE Interior: SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR Fit System: FLOAT FIT - A MINIMALIST, LIGHTWEIGHT FIT SYSTEM WITH AN EASY-TO-TURN RUBBER OVERMOLDED DIAL FOR ADJUSTMENTS (INTEGRATED WITH MIPS) Vents: 19 VENTS Weight: 285 GRAMS