The NWT Ultimate Direction Men's Ultra Vest Signature Series 6.0 Trail Running Vest is a high-quality hydration backpack designed specifically for outdoor activities such as hiking. It features a large capacity of 500 ML, with a buckle closure for easy access. The vest comes in a sleek black color and includes one pocket for convenient storage. Although not specifically treated for insect repellent, this vest is perfect for keeping you hydrated and comfortable during long hikes.