0:35 - Not trying to be pedantic, but I don't think Cascade makes variations to their outer (plastic) shell sizes. Size differences are usually about the thickness of the firm foam interior. You can see this quite readily if you hold up a CPV-R XXS to a CPV-R M/L. The outer shells are identical. Flip them over and you can see how much thicker the interior portion is on the XXS. At least that's what I've observed. Maybe someone from Cascade can weigh in and set me straight?