What can I stack Animal Flex with? Rudy Checo December 29, 2021 16:23 Updated Product Stacking Animal Flex is the baseline to any stack and can be stacked with any of the products in our product line. As a part of our foundational line, Animal Flex should be used for your everyday needs. If you have further questions please reach out to our support staff at firstname.lastname@example.org or send a contact request here. Related articles Is Animal Flex suitable for vegetarians? Comments 0 comments Please sign in to leave a comment.