Reference Prosafety :
A trendy Bib & Brace overall with plenty of stretch! A main fabric with mechanical stretch, stretch inserts at the back and on the sides, 4-way stretch at the back below the waistband, at the crotch and at the back of the knees and finally extremely resistant Cordura®Stretch on the knee pockets. Additional benefit of all this stretch? The modern fit is nicely tailored without compromising on your freedom of movement.