The sole is a wrap around sole with side support as well as grip rounding up the toe and back over the heel for additional grip. The sole is very flexible and is ideal for trapeze dinghies. * Great flexibility * Wraparound, non-marking natural rubber sole for improved grip * Reinforced heel, toes and bridge area for increased support * Non-ferrous zip * Velcro zip lock * Neoprene gusset to reduce water ingress * 5mm Double lined neoprene * Flatlocked seams for comfort