The use of fiber reinforced polymer (FRP) composite structures is increasing these days due to their advantages, such as high strength, excellent durability, light weight, and fast construction. One group of FRP structural elements, which are manufactured in factories and are used in many structural and piping applications, is filament wound glass FRP (GFRP) tubes. Concrete filled fiber reinforced polymer tubes (CFFTs) have gained significant attention as a composite structure because the FRP tube provides confinement to the concrete core. Several studies have been conducted to understand the behavior of CFFTs. The results have shown that cross-ply and near-cross-ply FRP tubes have linear behavior. However, angle-ply FRP tubes have non-linear behavior, especially when they are filled with concrete. One of the most common angle-ply FRP tubes used in composite structures is ± 55˚ GFRP tubes, which has shown significant non-linear behavior when filled with concrete. In this study, previous research about testing ± 55˚ GFRP tubes under pure tension load is evaluated and a new configuration of CFFT has been tested under pure tension load to understand the exact behavior of ± 55˚ GFRP tubes when filled with concrete. According to the results, the ultimate strength and ultimate strain of the tube demonstrated an increase of 2.48 and 3.32 times compared to the hollow tube, respectively.