Universally Motorcycle & Car Back This versatile lumbar cushion seamlessly fits both motorcycle seats and car seats, providing ergonomic comfort for riders and driver without any modifications required Use it during extended motorcycle tours through varying terrains or during your daily car commute; its light weight design and adjustable straps ensures a perfect, securely fit every time Memory foam molds to your spine for targeted pressure relief during long journeys, while the breathable and antislip base discomfort and shifting during rides or sudden stops Ideal for motorcycle enthusiasts tackling winding roads and daily commuters enduring long drives, this cushion lower back to combat riding fatigue and driving strain Built tough with resilient memory foam that won ' t sag and wear resistant, tear resistant fabric, this lumbar withstands the rigors of outdoor biking and daily car use while maintaining its supportive shape