At last a skinny sretch jean for climbing! High quality denim blended with 6% polyester for durablity and 1% elastane for comfort. As with all denim, the devil is in the detail, so Moon branded metal trims and stitching details for strength, and of course the Moon logo embroidery rising from the change pocket! A discreet diamond gusset is of course an essential feature. And most importantly, they look great on.