Chainsaw trousers (Sockbridge CA10)

My children have been going out to Latvia to help at a camp for young people. We were there in January and it was -290! Everything runs on solid fuel so there is now tons of logging to do and apparently you can't get chainsaw trousers out there. I would really like to send a few pairs out so there are different sizes available, so if anyone has any spares they would be much appreciated. Can collect.