DOUBLE Black Leather Motorcycle Cover. The DOUBLE is 2.5" inches thick and is ideal for passenger riders that have to sit on a tiny seat and also for riders that may be heavy or just ride for hours at a time. It has two layers of our advanced cushioning material, FlexGel", on both the top and bottom to provide the ultimate in comfort and performance. The Soft Bottom MOTORCYCLE Cushion reduces numbness, fatigue, vibration, & long-term driving related health risks. Great for use as a stadium seat also. Constructed of 100% Dry-polymer gel, with an average weight of 3.2 lbs. and is 15" wide x 12" deep x 2.5" thick. FEATURES: Open cell cushion design has an overall mass density of 80% air to naturally insulate against heat and cold. One-piece construction for superior weight distribution & durability. Small interconnected gel cells move pressure away from areas of discomfort. Works by 'immersing' you into the cushion, so that you will be raised off the seat only slightly. Easy to Use -- no inflating, kneading or adjusting required for optimal use. Vibration and shock are naturally absorbed by the FlexGel material and its waffle shape. Completely non-allergenic material; safe for all people, even ones with sensitive allergies. Naturally conforms to support and cushion according to the unique posture of each individual user. FlexGel will not stain or stick to surfaces or absorb odors or liquids due to its closed cell molecular properties. Cover (included): Base: Non-skid rubber-nippled for good seat contact and stability. Because it just lays on top of your seat, you can share it with other riders and use it on different bikes. You can even use it on ATV's and as a stadium seat. Unlike air and liquid cushions that can be easily ruined with a puncture or leak, FlexGel will provide years of use without the worry of failure or malfunction. Thousands of full crushing cycles were unable to permanently deform our memory material.