The-key-feature-of-these-pants-is-the-advanced-composite-fabric-made-of-cotton-coupled-to-a-windproof-membrane-&-a-microfleece-lining-Technical-features-15-Ounces-denim-fabric-triple-layer-Windout-membrane-Microfiber-lining-EN-1621-1-certified-Multitech-protectors-on-hips-&-knees-5-external-pockets-Windproof-&-breathable-membrane-Adjustable-knee-protectors-3-layers-transpring-fabric-Product-weight-1-30-Kg