Lightweight Running Hydration Vest ? Hiking, Cycling, Outdoor Sports Backpack ? Description Stay hydrated and focused during outdoor activities with this lightweight hydration vest, designed for running, hiking, cycling, and more. Made from durable nylon, this vest combines comfort, practicality, and style for active lifestyles. Its ergonomic design ensures a snug fit, reducing wind resistance and enhancing stability during intense activities. With soft, supple fabric and an elasticized closure, this hydration pack adapts to your movement, providing optimal comfort. The reflective backlight feature ensures safety in low-light conditions, making it ideal for early morning or late evening adventures. Compact yet spacious, this vest simplifies your gear management while offering enough storage for essentials. ? Specifications Name: Running Vest Backpack Material: Nylon Weight: 210g Sizes: M: 37 x 14 x 13 cm (14.57 x 5.51 x 5.12 inches) L: 42 x 17 x 14 cm (16.54 x 6.69 x 5.51 inches) Features: Lightweight, reflective backlight, ergonomic design, elasticized closure Use: Running, cross-country, marathon, hiking, cycling, mountaineering Condition: Brand new ? Key Features ? Brand New Lightweight and durable hydration vest designed for outdoor sports enthusiasts ? Package Includes One hydration backpack with adjustable fit for running, hiking, and cycling ?? Compact Design Small size and ergonomic shape reduce wind resistance while providing ample storage ?? Enhanced Safety Reflective backlight ensures visibility during low-light conditions for safer adventures ?? Versatile Use Perfect for outdoor activities like marathons, trail running, mountaineering, and biking ? Package Includes 1 x Running Hydration Vest Backpack (description exceeds maximum possible length)