The tubular fabrics are one of the most applicable fabrics in different industries especially in aerospace, marine, petrochemical and automotive industries. Tubular fabrics can increase the mechanical properties of the final product either directly or as a reinforcing phase of the composites. Producing lightweight thin walled vessels with high resistance against internal pressures and high flexibility is among the many applications of the tubular fabrics. Among the existing systems, the braiding and weaving are of significant importance for producing tubular structures which are used as thin-walled vessels. The braid angle in braiding and the density of weft and warp in weaving are the most important variables which should be investigated precisely and be improved for the construction of a thin-walled vessel under the internal pressure. This study investigates these two parameters in an experimental method and compares the obtained results with the theory of the thin-walled pressurized vessels and shells strengthened and improved by fibers. A thin-walled silicon pipe was used as the core for conducting the experiments. Meanwhile, from braiding with 7 different braid angles and weaving with 5 different weft densities were used for the covering of this thin-walled pipe. After this stage a structure was designed to test the internal pressure and the samples were placed on it. The diameter started to increase in a fixed rate due to the increase in internal pressure. The behaviors of the samples up to the failure point were recorded by a digital camera. The pressure-diameter diagram was drawn and investigated for braid and weaving samples. In braid samples it was observed that the diameter-pressure diagram in the angle of ±55° was linear and in this angle all the forces created on the surface of the thin-walled vessel are along the braid strands. In weaving samples also it was revealed that through increasing the weft density up to a certain amount the fiber involvement would also increase and as a result the failure pressure increase as compared to the weight of the used weft yarn would happen. Following that due to increasing the shear forces in the surface of the fabric the decrease in the failure pressure as compared to the weight of the used weft yarn would happen. Finally the accuracy of the obtained results was investigated according to the thin-walled vessels theory. Keywords: Braiding, Weaving, Braid angle, Thin-walled vessels, Internal pressure, Wrinkling moment