Waterproof nylon and polyester mesh Imported Water Bag System: The backpack is equipped with two 250 ml water bottles; easy to drink while exercising Mutifultional Compartment: This hydration backpack is well-designed with compartments for water bag; energy; mobile phone; water bottle; cards; making it convenient for travelling with one bag Comfortable and Breathable: Our running hydration vest is designed with breathable mesh fabric; comfortable and breathable; suitable for sports; and with reflective webbing; it is also good for traveling at night Adjustable and Stable: This trail running backpack is equipped with adjustable shoulder straps; suitable for all chest shapes; close to the human body design; more stable; more suitable for exercise Lightweight Design: The backpack weight is 8.82 oz/ 250 g super light; The lightweight design of this hydration vest is ideal for your running; jogging; hiking; cycling and other trips UPC 605244312744 ASIN B06XXH8Y1F Color Rose Red (5.5L)-with 2 Water Bottles Capacity 5.5 Liters Brand Name JEELAD Sport Type Running Strap Type Shoulder, Waist Strap Item Weight 0.73 Pounds Tank Volume 5.5 Liters Manufacturer JEELAD Model Number LYSB06XXH8Y1F-SPRTSEQIP Material Type Waterproof nylon and polyester mesh Pocket Description Stash Pocket Manufacturer Part Number JL-1508RE