it stands for both bumps

Two-layer's foam (Dual-Stage) - Combines superior filtration with high air flow

Outer material 2: Ballistic protective material

with these grips you are sure to find your harley even hotter

and horn functions

PREMIER HELMETS HELMET TYPHOON FR 92BM SM APINTTYPPOLF92000S yamaha-tricity-125-abs--sec2--125-2020-esi8198298 it stands for both bumpsThermoplastic Outer Shell Construction Uses Two Mould Sizes to Increase Performance Dependant On Size Chosen. Small shell covers sizes from xs to m, While larger shell covers sizes from l to xxl., Inner shell construction is EPS material allocated at different densities to disperse energy release un case of impact., Scratch resistant polycarbonate visor whisper Allowing Riding in All Weather and Light Conditions., Visor is equipped with Pinlock lens