Replying to Ski-pants that won't tear...

I realise this is probably a pipe-dream, like binge drinking without hangovers or guilt-free regular sex without commitment (or cost), but after somehow tearing the arse out of my pants yesterday, I'm feeling pretty frustrated.

Can anyone recommend a pant that is fairly heavy duty. I know that nicks around the ankles are pretty inevitable, but advice on a pant that at least tears only rarely would be muchos appreciated.

I went for a cheaper(ish) Helly Hansen pant last time, so maybe I'm paying the price for my stinginess, but these things have torn like no pant I've ever worn before.
Any ideas on something sturdy and with marginally more style than a heshen potato sack would be great.