Hi-Shine repair plastic cracking with liquid leather? : r/nps_solovair

My solovairs (corrected leather) are cracking and tearing near the ball of feet. I've tried using leather filler but it flakes badly. The tears are starting right at the end of the

Shinex Leather & Plastic Restorer,Shinex Plastic Restorer,Shinex Plastic Leather Restorer Spray,Plastic Parts Refurbish Agent,Plastic Restorer for Cars,Car Exterior Refurbishment Cleaning Agent (3pcs) : Automotive

Solovair Materials Explained – NPS Solovair US

Shoe Care Tips – NPS Solovair US

Tear in Hi-Shine Solovair Gibson - is a repair feasible? : r/AskACobbler

Leather Care – NPS Solovair US

Leather Care – NPS Solovair US

Crease from packaging or leather defect? : r/ThursdayBoot

Hi-Shine leather coating scratched : r/AskACobbler

How do I fix this? : r/nps_solovair