The G-Star 3301 slim jeans feature a classic 5-pocket construction inspired by authentic Western jeans. Mid waist,5 pockets,Narrow from thigh to hem,Button fly,Cow grain leather label at the back waist Burten black denim offers just a right amount of stretch to create a comfortable fit. It is dyed with sustainable liquid sulphur from DyStar . 11.5 oz denim,3x1 right hand twill construction,Added stretch, ease of movement,99% Cotton, 1% Elastane (Lycra ). Better Cotton is sourced via a system of Mass Balance. Find out more about our sustainable materials .,Sustainable sulphur dye method from DyStar