Lazer Tonic KinetiCore Helmet Pine Green Size:L qty 1 of 15mm spacer GiantFebSale qty 1 of 15mm spacer Driver Compatibility: SRAM XDR and without a lot of fiddling or fuss Technology: built in KinetiCore enhances protection from rotational impact in the event of a crashFit system: Advanced TurnSys adjustable fit system with quick snap buckle for fast and stable fitEyewear friendly: allows secure storage of glasses without temple arm discomfortLED compatibility: compatible with Universal Lazer LED light for enhanced visibilityWinter ready: compatible with soft fleece Winter Kit for cold weather rides (kit not included)Size range: S (52–56 cm) M (55–59 cm) L (58–61 cm) XL (61–64 cm)