Material: Quick Dry NylonSizes: 19x40cm(7.48x15.75in)Weight: 110g/3.88ozColor: Grey/GreenPackage Included: 1 pcs Generic Running VestDurable & Lightweight Material: Our running vest backpack is made of high-quality waterproof, abrasion-resistant, scratch-resistant nylon. The seams are reinforced to withstand more weight. Weight: 0.11 kg. Size: 19 x 40 cm.Large Capacity & Multi-Pocket: Featuring a spacious main compartment, multiple front and side pockets, you can easily store your phone, energy gels, hydration pack, and other essentials. It also has a dedicated water bladder compartment with a shoulder water outlet, enabling quick hydration during running, cycling, or marathon.Breathable & Comfortable Carrying System: The back is designed with breathable mesh fabric, ensuring no stuffiness during intense exercise. The ergonomic shoulder straps and chest buckle provide a snug fit, suitable for all-day wear.Reflective Strips for Night Safety: Equipped with reflective strips on the front and back, this vest backpack enhances visibility in low-light conditions, making your night running, evening cycling, or early morning hikes much safer.Versatile Exterior Attachments: With elastic nylon cords and a front mesh pocket, you can securely attach towels, water bottles, or umbrellas. It's an ideal choice for various outdoor sports, including trail running, hiking, cycling, and even casual city jogs.Polyamide