Made in Great Britain take a look at some of the best British made Athleisure brands, British Gym wear and British activewear brands. Whether its the gym, yoga, cycling or jogging that you are in to, you want performance and style in what you are wearing. And if you also want to know that what you are wearing is British made, then you can find everything from leggings, sports bras, cycling shorts and running trainers on our list. Here are some of the best sports and activewear brands that are made in Great Britain.