Atomics 2 Training shoe has a breathable engineered mesh upper using 100% recycled polyester yarn. Womens 'Atomics 2' Mesh Running Trainers - Black - 8 - Up your exercise game with Atomics 2, a Gola training sneaker that incorporates a two-piece rubber outsole tread containing 5% recycled content. A pull loop tag can be found on the heel counter to make getting this trainer on and off effortlessly. The upper of this trainer is made of engineered mesh that is breathable and uses 100% recycled polyester yarn.