NIKE Men's Flex Slim Golf Pants, Thunder Blue/Black, Size 40/32 90% Polyester/10% Spandex NIKE Flex fabric stretches with your body; hook-and-bar closure on the waistband provides a secure fit Dri-FIT technology helps keep you dry and comfortable Ventilated elastic waistband provides breathable comfort Slim fit is designed to contour the legs and hips without inhibiting motion