Review on Customizable And Comfortable: WOCCI Nylon Sport Watch Bands With Quick Release And Adjustable Fastener For Men And Women - Choose From 18Mm, 20Mm, Or 22Mm Widths by Eddie Kittylovin

I got the 18mm and it works with the Casio F-91W. The quick release spring bar made installation quick, easy and tool free. The velcro fastener design is a step up from the traditional buckle style. I was worried that the velcro would not be secure enough but it's been holding up well. I can now see why the velcro strap is common in sport watches. The nylon material is way more comfortable and adjustable than the original resin strap that came with the Casio. I highly recommend getting this strap. It's cheap and it works great.