The ATOM 3 W backpack is designed according to the female morphology. It is worn like a vest on the skin. It allows to meet the constraints of the most demanding athletes. This ultra-light backpack allows you to carry the essential equipment for the trail. Its Coolmax® All season material offers a unique comfort in the world. Its action optimizing the body’s thermoregulation makes it possible to improve its physical performance. Perfect balance between lightness and stability. Side Velcro to adjust your bag according to its capacity and size. This backpack is ideal for the Trail, but also for mountain biking, or Nordic skiing. The accessories are quickly accessible and very well maintained. All you have to think about is running, this bag is being forgotten!