Ultra-lightweight and slim fit Designed for high performance runners, this vest stays barely there on your torso. Adjustable straps let you dial in a secure, bounce-free fit for marathons, long hikes, or fast-paced races. Ample hydration capacity Stay hydrated on the move with a built-in water bladder and convenient front flask pockets. Easy access to hydration during endurance events or long trail runs helps you maintain pace without stopping. Breathable and waterproof design Constructed with breathable mesh and waterproof materials, the vest keeps you cool and dry during sweaty climbs and rainy treks. It’s built to perform in all weather conditions. Secure storage solutions Multiple zippered compartments and front pockets provide organized places for energy gels, phones, keys, and other essentials. Storage is designed to stay out of your workflow and prevent shifting during activity. Use scenarios - Marathon training or race day: light, secure, and accessible hydration with minimal bounce so you can focus on pace. - Long trail runs or ultra distances: ample hydration and organized pockets keep you moving smoothly over rough terrain. - Day hikes in variable weather: breathable and weatherproof design protects you from sweat and light rain while keeping gear within reach. Key attributes - Function: ultra-lightweight slim vest with built-in hydration and front pockets for quick access. - Compatibility: includes a built-in bladder and front flask pockets for practical on-the-go hydration. - Size and fit: adjustable straps for a secure, personalized fit that minimizes bounce. - Materials: breathable mesh with waterproof outer components for all-weather performance. - Performance: designed to reduce chafe, improve airflow, and keep essentials securely stowed during activity.