The primary difference between the two is that activewear is comfortable and casual sportswear that’s designed for workouts and sports activities. It’s something that you can wear to a gym, your morning run or a yoga class. Whereas, athleisure wear is suitable for both fitness sessions and casual outings. Whether you’re running errands, hanging out with friends or stepping out for a casual date, an athleisure look never fails you. It combines fashion and sportswear.