This trail running vest launched by FashionFlying is a high - quality piece of equipment specially designed for trail running enthusiasts. In terms of materials, it uses nylon - ammonia fabric, which is lightweight and effectively reduces the burden during running. It has moisture - wicking and sweat - releasing functions, which can quickly take away sweat from the body surface and keep the body dry and comfortable. It is also combined with a 30D mesh design, which has excellent air permeability, allowing the body to breathe freely at all times. In terms of design details, it is highly practical. The double chest pockets can hold 2 soft sports water bottles, making it convenient for runners to replenish water at any time. There are 3 multifunctional storage waist bags, which can store small items such as mobile phones and energy gels, and are easy to access. The sandwich mesh fabric design on the shoulders not only reduces shock but also further enhances air permeability. There are buckle straps on the back, which can fix 2 trekking poles to meet the needs of different terrains. At the same time, there are also storage bags on both sides of the back, which can hold more items. In addition, the reflective printing design on the back and waist greatly improves the safety of running at night, ensuring that runners can be clearly seen even in low - light environments and escorting the trail running journey.