Isoprene Is high density shock absorbing foam designed to distribute pressure and in this case under the saddle retains its form to adjust the fit as required. Unlike memory foam which is highly responsive to temperature that effects its properties, isoprene holds a consistent density making it ideal for corrective shim saddle pads.

A depth of 7mm makes the shims the perfect depth for gradual adjustment to Front, Back or Bilateral saddle fit alterations.