509 Sinister X7 Fuzion Flow Lens Colour:Yellow HCS Tint 35% PU / 37% nylon

35% PU / 37% nylon / 8% polyester / 20% eva

Integrated tech thread keeps you connected with your devices

normal (if using onboard battery alone)

17% polyvinyl chloride (PCV)

509 Sinister X7 Fuzion Flow Lens Colour:Yellow HCS Tint 35% PU / 37% nylonCompatible with all Sinister X7 goggles, the 509 Sinister X7 Fuzion Flow Lens has a super anti fog coating, vents built into the lens, and allows for quick and easy lens swaps depending on light and snow conditions, letting you see more clearly. FEATURES Fuzion Lens Technology Vents built into the lens itself Compatible with all Sinister X7 Goggles (excluding the Ignite models)