20 ounces of durable nylon construction. Smooth texture that matches OEM quality mats. Multi-layer backing designed to maintain the mat shape and provide protection for your original carpet. Moisture protection. Factory compatible anchoring devices are included with each set for vehicles with a factory installed hook, snap, post, etc. Mats look better and last longer when they stay in place.Won’t wrinkle or create hazardous driving conditions. The design is sewn through carpet and backing.