Maybe one of these similar products would be of interest:-

Pinlock Anti-Fog Compatible Visor Helmet HJC Rpha 11 Rpha 70 (HJ-26)

Everalo Compatible with Hjc Rpha 70 Visor - Rpha 11 - Hj26 - Pinlock and Tearoff Ready - Helmet Visor Anti-Scratch and Anti-Fog (Photochromatic)

Helmet visor lenses, Motorcycle Full Face Helmet Visor Lens Case for HJC RPHA-11 RPHA-70 HJ-26(Revo orange)

Motorcycle Helmet Visor for HJC RPHA-11 RPHA-70 HJ-26,Motobike Wind Shield Helmet Lens Visor,Motorbike Helmet Accessories Replacement (Chrome Silver)

Helmet visor lenses, RPHA 11 Shields for HJC RPHA 70 RPHA 11 HJ-26 ST Motorcycle Helmet Replacement Visor Windshield