An experimental study of Kevlar-29/epoxy composite thin wall cylinders under internal pressure loadinghas been investigated in this work. Kevlar/epoxy composite specimens were fabricated and tested. Specimens were tested using the hydraulic pump and subjected to a static internal pressure.The results obtained from this work to find the pressure increase ratio and the failure load were found and a comparison has been achieved.According to the comparison results the tough material was specified. The efficient and effective composite cylinders have been tested experimentally. And this provided a considerable advantage over using a woven roving fiber in pressure vessels applications.