These Extreme bibpants are made of the very resistant fabric called Opalo in 700 gram/m2 material weight.
Now you can also decide for yourself which colours you want to the front side and what to the back side!
All the seams are double stitched and welded together so you will absolutely not get wet nor the seams tear. The fabric of these pants is shiny on the outside which makes it very easy to keep them clean - just splash the dirt off with water.
On the knees you may add double layer fabric to make them even more protected.
This professional gear tends to be a tad larger than the usual consumer gear. The store owner is 171 cm tall and weighs 72 kg and he thinks the size XS/48 is nice.