A 4 way Lycra sports bra is a type of athletic bra made with a stretchy fabric that includes a blend of spandex and nylon. The term "4 way" refers to the bra's ability to stretch and recover in four directions: up and down, left and right. This allows for a more flexible fit and greater range of motion during physical activity.The Lycra material used in these bras provides additional stretch and support, which can help to reduce bounce and movement during exercise. This can be particularly important for high-impact activities like running, jumping, and intense workouts.Overall, a 4 way Lycra sports bra is designed to provide a comfortable and supportive fit, while also helping to minimize discomfort and potential injury during physical activity.