This paper utilizes the micro-computerized tomography as the non-destructive inspection technique to characterize and compare damage modes of glass and glass + aramid fiber reinforced polyester laminated composites. Main goal of this study is to visualize the internal impact damage variation due to reinforcement type by using micro-computerized tomography scanning. Impact tests were performed on glass fiber reinforced and glass fiber + aramid fiber reinforced polyester composites at the same conditions and both composites were tested at 80J energy. After low velocity impact tests, micro-computerized tomography scans of both composites were taken from SkyScan 1173 system. (C) 2012 Elsevier Ltd. All rights reserved.