Lightweight and Adjustable Running Vest: This running vest is designed for ultimate comfort and athletic performance. Its ultra-light construction and adjustable chest strap ensure a perfect fit for both men and women. Whether you're running, hiking, or cycling, this vest frees you from the constraints of a bulky backpack, making it a stylish and practical choice for outdoor enthusiasts. Hydration Bladder Storage: The vest also features a dedicated hydration bladder compartment, compatible with 2-liter hydration bladders (sold separately), perfect for long-distance running or high-intensity outdoor activities. Say goodbye to dehydration worries. Multiple Storage Pockets for Convenient Storage of Your Essentials: This running vest is equipped with multiple pockets to easily store your phone, keys, snacks, maps, and other items. The secure phone pocket accommodates devices with a diameter of up to 18.5 cm. Adjustable Fit: Our running vest features an adjustable chest strap and waist belt to prevent it from slipping during exercise and ensure a comfortable fit while running. Reflective Strips for Safety in the Dark: The vest has prominent reflective strips on the front and back that increase your safety when running at night. Whether you're running at dusk or in low light, these reflective elements ensure you are always visible and safe. They help you get started anytime, anywhere. Breathable and Durable for All Your Outdoor Adventures: This running vest is made from premium breathable fabric that keeps you cool and comfortable even during high-intensity workouts. Designed and tested by outdoor enthusiasts, it withstands the demands of various sports, including running, hiking, and cycling. Ultra-Light and Portable: This ultra-light multifunctional running backpack weighs only 120 grams, making it comfortable and easy to carry, allowing you to travel light and reduce friction. Versatile: This unisex outdoor backpack is easy to carry and perfectly adapted for various sports, providing a comfortable, durable, and practical experience on your adventures.