Our new E7 Flashbomb Heat Seeker 5/4 Hooded wetsuit is our most technically advanced cold water suit to date, combining all new E7 Flash Lining throughout the wetsuit and our unique Version 2 Flex Energy lining that generates even more heat when stretched. Along with many more superior technical features, the Flashbomb Heat Seeker is our warmest and stretchiest hooded Flashbomb ever.