Express Men's & Women's Clothing Black Bull MAD Jeans Regular Fit ECO Friendly 3641 7329 79 C Black Bull Skater Jeans Black Bull Apparel Jeans, Shirts, Shorts & Jackets #N# 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.