Material: This band is made of durable double-layer nylon weave and the nylon fabric is crafted from cotton woven material which is exceptionally soft and light, making comfortable to wear. | Band Width (Size): Standard 16mm, 18mm, 19mm, 20mm, 21mm, 22mm, 24mm. This watch band is compatible with all watches (including smart watches) with above band width. To determine the right size, use a ruler measure the interior distance between the two lugs on the watch case. | Adjustable: Fit wrist 14.5cm-22cm (5.7-8.6 inches). Adopt an durable Hook and Loop closure which can be cycled (opened and closed) thousands of times, allowing the watch to be fastened or adjusted in seconds. | Quick Release Design: Quick release spring bars allow you to easily install and remove the watch band without tools. You just need to slide quick release knob with finger. | Washable: This one-piece strap can be washed when it gets dirty because its color is a permanent ink that will not fade. Ideal for sports and everyday use.