Builtin 1 L water tank (included) keeps you hydrated during long efforts, while the compact design minimizes bulk. Ultralightweight design for maximum comfort with minimal weight on the shoulders and back. Breathable ergonomic fabric wicks sweat away from your body and reduces chafing for a comfortable fit during activity. Adjustable strap system and sturdy buckles provide a secure, stable fit for all body types and activities. Practical and secure storage with multiple zipped pockets placed for quick access to phone, keys, energy gels, ID card, or a small water bottle. Versatile for all sports: designed for running, trail, marathon, hiking and biking (mountain biking and road biking). An ideal companion for outdoor activities. Use scenarios Longdistance running and trail training: The 1 L tank supports hydration over extended sessions, while the accessible pockets hold phone, gels, and keys without bulk or interference. Day hikes and multisport outings: Hydration on the go combined with secure storage for essentials makes it suitable for varied outdoor activity without needing a separate pack. Road and mountain biking: Secure fit and quickaccess pockets for necessities keep you focused on the ride, with reliable hydration on demand.