Diono car mat, how does this not slip forward

HI Angela, thank you for your enquiry. ? A handy tab slips between the seat and back to keep the mat in position, and the FlexGrip backing contours to the shape of the car seat to ensure a secure fit and prevent slipping. We hope this helps. For further information on this or any of our other products available, if you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move Store where one of our team experts will be happy to assist you in your product search and help answer any further questions you may have. We hope this has helped with your query.?