Klim warranty is not transferrable but I've had 2nd hand items repaired and I've been open about it with them and it was done free of charge.
'Hi Klim, I've a old Traverse Jacket here, it's got a rip in the sleeve and damage to the goretex, can you give me a price for a proper repair please?'
.....
'Thanks for reaching out to us, send it in and we'll have a look'
......
'Thanks for sending the jacket in, we've had it repaired it should be back with you in a few days, theres no charge'
That's how it goes!