Adjustable Strap: The strap length can be adjusted from 31" to 45". That enables the bag to be crossbody or carried on the waist. And you can take off the bag quickly with the quick-release buckle.Durable Materials: The belt bag is made of waterproof fabric, smooth zipper and sturdy adjustable strap to last longer in different occasions.Compartment Design: A large outer compartment with zipper, a large inner mesh compartment and two small inner mesh compartment. The compartments are designed for different sizes of items.Dimensions: Appearance size: 8"*5.5"*2"(20cm*14cm*5cm); Adjustable strap length:31" to 45"(78cm to 114cm)Occasion: Made for traveling, daily carrying and exercises such as:Running,Hiking,Cycling Jogging,etc. Product description VKIOIP Belt Waist Fanny Pack Dimensions:Appearance size: 8"*5.5"*2"(20cm*14cm*5cm)Adjustable strap length:31" to 45"(78cm to 114cm)Quick-Release buckle designCompartment Design:1 Large outer compartment with zipper;1 large inner mesh compartment and 2 small inner mesh compartment, Quick-Release Buckle Waterproof Material Adjustable Strap Smooth Zipper