The 3301 Slim 1\2 are cut from black denim which has an authentic denim look, yet it has been infused by performance fibers making it suitable for an 'on the go' lifestyle. Midweight 10.2 oz denim High stretchability Superb recovery 3x1 Right hand twill 91% Cotton, 7,5% Elastomultiester, 1,5% Elastane (Lycra®) Medium Aged Grey Skilfully finished with deep fades that contrast with the denim's grey Basic shade.