【Modular 2-in-1 Hydration System】 - Two separate bags—a tactical molle chest pack and a hydration backpack—that can be used alone or instantly combined into one balanced, hands-free hydration solution. Connect them easily with secure webbing straps and quick-release buckles. Once attached, independently adjust the front and rear centers of gravity for a custom, comfortable fit. Detach in seconds when you need to go light or share gear. Versatile, stable, and built for movement. 【Comfortable & Adjustable】 - Chest straps are fully adjustable for a secure, custom fit that stays in place—even during intense activity. The wide mesh shoulder pad adds comfort and reduces pressure. Made from lightweight 500D Nylon, this hydration vest won’t weigh you down, so you can perform at your best mile after mile. 【Built for Endurance】- Engineered for serious endurance sports, the CLTAC Hydration Chest Pack keeps you hydrated through long runs, marathons, climbs, hikes, bike rides, and backpacking trips. Includes a high-quality 2.5L water bladder that’s BPA-free. The ergonomic drinking tube lets you sip easily without slowing down. Its waterproof design stands up to tough conditions. 【Smart Storage, Easy Access】 - The chest pack features multiple pockets that keep essentials organized and within reach. Store radio, phone, keys, cards, and snacks up front. The backpack compartment holds your bladder, cloth, towel, helmet, and more. Everything stays secure and accessible on the move. 【100% Satisfaction Guarantee】 - Love it or let us know—we’ll send you a replacement, no questions asked. Trust the vest that elevates your run, ride, or adventure. Shop with confidence and gear up smarter with CLTAC. 2-in-1 Convertible Chest Pack and Hydration Backpack with 2.5L Water Bladder, Adjustable Lightweight Molle Hydration Vest for Women Men Outdoor Hiking, Gravel Cycling, Mountain Biking, Running