The most versatile flat inflatable watercraft. A waterlevel center of gravity allows for excellent stability; hence the generic name : SIT ON TOP. To be used in rivers, lakes and sea. Ideal for rental. Construction : polyester fabric hull + reinforced PVC bottom, inflatable inner PVC chamber, ergonomic seat with pouches (2 seats on ST6656), foot rest, giant protected valves. 1 mesh carrying bag (serves also as dive bag).