When you create the product with Printful, you add a design onto it and they can generate a mockup. Zakeke does not integrate a mockup generator as Zakeke is a visual and live product customizer. Customers are able to create their designs and see them live on the product, it's not possible to generate a mockup on the fly.
Cut-sew and all-over print products from Printful (leggings, neck gaiter, totes, ...) are shown with a print-file view in the Zakeke customizer. This is to allow your customers to place a design all over the product.
For these products, in order to give your customers a realistic view of the item, we suggest using the real-time 3D preview feature that allows your customers to see a 360° view of the customized item that they zoom in on, rotate and move around. See the example here below.
The customer sees the exploded-view of the leggings
He/she uploads an image to customize it
He/she gets the realistic view with the 3D
Don't you have 3D models? No problem, ask us at firstname.lastname@example.org