Prolite says:The Balaram Stack Pro surf traction pad has no arch and features a three-piece Micro-Dot grip pattern, with an aggressive tail block to give you that "locked in" feeling and security when pushing through turns. The tail block has side bevel cut away's to allow a better fit on narrower tail boards or step ups. We recommend riding this pad on a high performance shortboard, step up, or gun. Cams pad comes with a 3M adhesive making sure that your pad stays put, while our Micro Dot groove pattern gives it a light weight, responsive feel. Micro-Dot traction absorbs less water and is less likely to rash your knees in tropical climates.