Our liners attach with a hook & loop fastening system. On the underside of our liners; we sew hook tabs/strips that grab the carpeting when you lay the liner down on the carpet. In most cases, these hook tabs stick very well to the vehicle's carpet. However, hook tabs do not stick to all carpets, so some vehicles require self-adhesive loop strips that adhere to the carpeting to act as "carpet replacement." Check out our FAQs for more information.