Shop kids' activewear at Simpson Outfitters for durable, comfortable, and stylish clothing designed for active children. Activewear includes items such as leggings, sports bras, tank tops, shorts, and jackets that are suitable for activities like running, yoga, and gym workouts. These garments often feature stretchy materials and compression technology to support muscles and enhance performance. Kids activewear is specifically tailored for children and comes in a variety of colorful and fun designs to encourage an active lifestyle from a young age. From performance shirts and pants to jackets and leggings, our collection is made to keep up with your child's energy and outdoor adventures.