A Zodiac ( brand name ) is an inflatable lightweight( fishing ) boat. The sides and bow are made of flexible tubes containing pressured air. The smaller boats often have a flexible floor and hull where the larger ones ( longer than 9,8 ft ) usually have a floor consisting of plywood or aluminium sheets that are placed between the tubes but are not fixed. The transom is rigid to allow an engine to be fitted.
Click here to check out the Zodiac Marine USA website