Shires Equi-Flector Mesh Exercise Sheet Yellow. Stay safe â€\\\" stay seen with the Shires Equi-Flector Mesh Exercise Sheet. The Equi-Flector Mesh Exercise Sheet is ideal for keeping yourself visible when out about on your horse during dim light or dark nights with the bright fluorescent material and reflective strips. Presenting a lightweight yet breathable exercise sheet, the Hi-Vis Mesh Exercise Sheet fits neatly under the saddle and is secured in place with touch close fastenings at the wither, at the girth and a fillet string.