The Chicago-Style Hotdog: Mustard & Onions & Relish & Pickle & Tomato & Sport Peppers & Celery Salt. No Ketchup! Neon Green Screen Print on a Heather White T-shirt (50% Poylester / 25% Combed Ringspun Cotton / 25% Rayon). Cut and sewn sweatshop free. Designed and printed by Union Labor at RAYGUN.