All of our boats are made from High-Quality German PVC Fabric. PVC is the acronym for Polyvinyl Chloride. PVC is the third most common plastic after polyethylene and polypropylene. PVC itself is used for everything from sewage pipe to house siding; from clothing to furniture; and even vinyl lettering to toys! PVC Fabric is lighter than other boat fabrics which makes them much more portable.The base structure of the boat is 0.9 mm fabric that has reinforcement in any high wear areas. The Hull is made of 1.2 mm material for added durability. As well, all of our seams are Thermal Welded rather than glued. This process is more labor-intensive but fuses the seams together and will not de-laminate over time.