In reply to aldo56:
Montane Terras are quite robust, lightweight, windproof and tough wearing. I use them for a little bit of cragging, indoors climbing (I've got all grey version cheap enough so I don't look like a scumbag), trekking and I also used them while ice climbing indoors (so you don't feel warm as well). You can pull them up and using one of the buttons at the bottom, make them 3/4 length trousers so they are perfect for climbing too. If you prefer full length trousers instead, another pair of buttons make them very tight at the bottom so you can see your feet. If buttons are undone, trousers fit over Scarpa SL Activ boots and there's still space. So pretty much versatile pants, too.
One pair of Terras gave up yesterday after I fell of my bike. It is the second bike I managed to break with one pair of Montane Terra pants apart from using them elsewhere. They didn't rip apart, there are just some scuffs while my calf, knee, elbow and palm are seriously damaged. I have torn skin (about 2 pound coin size) off my hand completely. Surprisingly, Terra pants were damaged less than myself.