Natural Cotton Ultra Thin Super 12’s Cottons Ultra-Thin Liners super are highly effective, comfortable and discrete. They feature a 100% cotton coversheet, making them hypo-allergenic and perfect for women with sensitive skin. Many women believe that Cottons Liners are the most comfortable out there. They come in two sizes (Pantyliners and Long Liners) and are perfect for discharge between periods or very light flow.