Petzen – Pets Food and Animal Food Shopify Responsive Store is perfect for creative entrepreneurs who like light, modern and moody. Create a unique website with easy-to-use options. Made to work with your branding or aesthetic, Petzen comes packed with features and endless customization options to create a website that is uniquely yours. No coding or templates are required! Do your editing entirely within Shopify. Petzen Shopify os 2.0 store is a super-versatile theme that is ideal for both small and large e-commerce businesses.