Black Bull Men's Jack 5 Pocket Stretch Low Rise Jeans Mark's Black Bull Jack Slim Fit Jean 3105 7214 79 Jean Slim Fit JACK & JONES 12271542 Black Bull Apparel Jeans, Shirts, Shorts & Jackets Marks. These jeans are made of a warm and breathable material that keeps your legs warm in the wintertime! Beyond its thermic capacities, the JACK guarantees great style and comfort (stretch denim for the win!). Stretch Denim with Back Fleece Urban Look Slim Leg Low Waist Inner Elastic Waistband 34" Inseam ECO Friendly 67% Cotton 31% Polyester 2% Spandex EASY CARE. Machine Wash Cold. Hang or Tumble Dry. Do Not Bleach.