Jack Adams Zip Front Muscle Hoodie. This simple yet stylish hoodie is designed to keep you cool during training, on the street or lounging at home. Made from soft cotton, this lightweight sleeveless design is complete with a zipped front, a drawstring adjustable hood and front pockets. Look cool and stay cool with the Jack Adams Zip Front Muscle Hoodie. Clone heather tank for color bars. Make sure to include the stripes. Made from 100% lightweight cotton.