Flex-N-Flex is a fitness apparel and accessories brand, manufacturer and online retailer based in California, United States. We specialize in superior quality products and accessories that will have you coming back for more. Flex-N-Flex has a huge selection of products ranging from Men & Women T-shirts, Tank Tops, Stringers, Bottoms and Accessories. We are the leading providers of bodybuilding and fitness clothing. Flex-N-Flex … Get the most out of your fitness wear while looking great! Fitness doesn’t just happen at the gym … It’s a Lifestyle!