[Radiant Urban Day Sling] NIID R1 is an original design, made of high quality ecofriendly polyester+leather-like fabric with fine workmanship and unique design style. With features such as Quick Access, Expandable, Versatilile, Spacious Yet Compact, it is the perfect solution to carry your daily essentials in style. [Expansion Design] 12.6"x 8.7" x 5.9". The expandable design at the top and bottom can be adjusted to support up to 6L capacity, which can accommodate a micro camera or 11" Pad. Semi-open Storage for temporary storage of water bottle or umbrella. [User-Friendly Design] Quick-release Buckle enables quick release from your shoulder. Built-in Retractable Key Chain helps you find keys. External Fastening Strap can fix tripod or bike lock. [Effective Travel] Features like rapid-retract shoulder strap, suitable padding and sufficient ventilation will keep you comfy on the go. Shoulder strap is made of nylon, reaches a length of 17.7 - 57.1" to meet your needs for free adjustment.