Dual 500ml Hydration Capacity Stay hydrated during any activity with two included 500ml softflask bottles made from safe, BPA and PVC TPU material. The foldable design allows for compact storage when empty, and the bite valve makes drinking quick and effortless. for marathons, endurance runs, longdistance cycling, and outdoor adventures where reliable hydration is essential. Lightweight and Unisex Fit Weighing only 192g, this hydration vest is designed for both men and women who want performance without added bulk. Adjustable chest straps provide a secure, comfortable, and customized fit for chest sizes between 35 inches and 47 inches (90cm to 120cm). Ideal for activities such as trail running, day hikes, and intensity training sessions. MultiPocket Storage Design Organize essentials with multiple easyaccess pockets for energy gels, phone, keys, and cash. Two larger rear compartments add extra space for snacks, towels, or a light jacket. This smart storage layout ensures you have everything you need within reach during long runs, cycling trips, or allday outdoor events. Breathable and Secure Wear Crafted from lightweight mesh fabric that promotes airflow and wicks away sweat for allday comfort. The combination of an elastic waistband and adjustable chest straps minimizes movement and bounce, keeping the vest stable and snug even during vigorous activity. Practical Applications Marathon and race training: Hydration and energy supplies are easily accessible without slowing down. Trail running and hiking: Compact storage and breathable comfort for extended time outdoors. Cycling and endurance sports: Secure fit and lightweight build reduce strain during long rides. This hydration vest offers a balance of capacity, comfort, and convenience for athletes and outdoor enthusiasts who need reliable performance during demanding activities.