Long Tall Sally Women's Blue Tall Denim Pocket Collar Shirt Size 20. Refresh your denim days with this collar shirt. Made from a soft cotton blend fabric, it features an open lapel collar, front chest pocket detailing and is complete with button fastenings through. Wear over your more dark toned denim and trainers for a double denim moment you'll style on repeat! Free returns in store within 21 days. Next Day delivery available.