Versatile Adjustable Workout Bench. Why Choose Our Adjustable Workout Bench?. Its robust construction and versatile settings allow for a wide range of exercises safely and comfortably. Ergonomic Comfort and Support: Featuring 2.5" thick padding and a 31.5" extended backrest for optimal head and back support, made from high-density foam and waterproof PU leather for exceptional durability during extended training sessions.