Main fabric high weight 12.5 oz, stretch cotton denim 100% TWARON® ballistic fabric inner reinforced and lined knee approved protectors CE 1621-1, adjustable and removable from outside Zero-Shock padding on hips, removable EN 13595-2 - 13595-4 tested. Anatomical knee construction. Rear pocket closed with flap and button, rear horizontal loop to combine biker jacket. Causal fit, apperance like trendy jeans.