Sporty leather pants in soft & durable cow leather in combination with durable stretch fabric. Features Cow leather / PA stretch Stretch panels in the back & above the knees HI-ART reinforcement at hips & knees Certified, class AAA Adjustable Level 2 certified protectors at hips & knees Triple seams in exposed areas Long connection zipper to jacket HI-ART® HI-ART is a proprietary material, used in especially exposed areas to increase abrasion resistance. It makes leather 200 percent stronger & textiles no less than 500 percent stronger. Triple-Stitching A garment is never stronger than its seams. It makes no difference how good the material is if the seams break. Following a multitude of tests, Lindstrands has found a technique that provides maximum durability. They use a well-balanced stitch density, a heavy-duty, hard-wearing thread in triple stitched seams in exposed areas.