Comparisons of Mack's Pillow Soft with other Earplugs Mack's Pillow Soft vs Bilsom 303LMack's Pillow Soft vs Bilsom 303SMack's Pillow Soft vs Hearos Ultimate Softness SeriesMack's Pillow Soft vs Hearos Xtreme Protection SeriesMack's Pillow Soft vs Mack's Ultra SoftMack's Pillow Soft vs Ohropax Classic