Drive Medical Premier One Foam Cushion 3" H x 16" W x 16" D, Fluid-Resistant Stretch Top, Waterproof Vinyl Bottom, Latex-Free The Premier One foam wheelchair seat cushion provides patient comfort and stability with a simple, economical design. Its aerated foam construction keeps the patient cool and dry while the low shear cover helps to protect sensitive skin. The Premier One foam cushion is designed to provide comfort and stability with a simple, economical design. Aerated foam keeps the patient cool and dry. The low shear water-resistant stretch cover helps maintain sensitive skin tissue. The vinyl bottom is waterproof.