- Straight fit blue jeans for boys - Five-pocket cut, adjustable waist - Ultra-resistant denim fabric - Adjustable waist, zip closure and hidden hook - IKKS #actforbetter: material made from organically grown fibers New Ultra-resistant fabric: comfort, flexibility and durability guaranteed! Straight jeans are still THE essential piece in every kid boy's wardrobe. Choose them in blue, made from ultra-strong denim fabric, for a casual style that's not afraid to wear it.