Discard my climbing pants

My climbing pants for summer season was split during I climbed Mt. Johnen-dake. As it was happened at hip position, I could't know it until my son found and told me.
I used it by fixing some points and continued to use it. But, I decided to discard it.
I used it about 9 years. I bought it before I climbed Mt. Yari-gatake which was my first climbing in North Alps. I climbed many mountains with the pants.