Additional seams at the knees create an ergonomic fit. Mid waist – elasticated with a drawstring,Slim legs,Inset pockets at front, patch pockets at the back,Knee panels,Ribbed inset panels at lower back leg,Zipper & button closure Versatile, high quality superstretch woven fabric with an authentic denim aesthetic. Featuring a black color which is designed to stay black, this fabric offers superb recovery and a soft handfeel. 10.2 oz Denim, 3×1 right hand twill construction,Excellent stretch, over 35% and superb recovery,92% Cotton, 7% Elastomultiester (T400® EcoMade), 1% Elastane (Lycra®),By buying cotton products from G-Star Raw, you're supporting more sustainable cotton farming.,LYCRA® T400® ECOMADE is a sustainable stretch fiber, partially made from recycled and renewable resources. Designed to make garments last longer and hold their shape wear after wear.,Black is derived from Archroma's sustainable Diresul RDT dyestuff and has been designed to keep its black color wash after wash.