I recognize your boots, I also have Salomon Diaolagues in the dual boa variant and they’re pretty nice except the fact that they started falling apart after 3 days of riding. I looked it up and they do have a 3 year warranty on the shell and an unlimited warranty on the boa system. I’m planning on returning them at the end of the season for a refund and plan to switch boots for the next season. Go to Salomon’s website for specifics to return them, since they fall under winter gear they will have to be returned to where you bought them unless it was Salomon specifically. That dealer will be able to issue you a refund. If anyone else is reading this DO NOT BUY SALOMON DIAOLAGES, they are wonderful boots that do not last, the outer shell is not flexible at all and does not have any points to flex so it just tears incredibly fast.