Spriing arch supports are extremely versatile and able to be worn in everyday shoes (even dressy ones) as well as for sport.  The short covers that come in the kit are best for everyday shoes and can also be worn in sneakers in conjunction with the factory shoe liner. Spriings are streamlined to fit into dress shoes, medium heels, flats, sandals, mules etc. The velcro spot system underneath the Spriing shells helps to secure Spriings in place even in backless shoes.  Spriing long covers (available for separate purchase) are good for roomier shoes that need filling up a little more such as work boots and shoes with removable factory shoe liners (some sneakers or casual shoes have these). Spriings work equally well in all situations. Detailed instructions on how to use Spriings can be found on the packaging insert or on the website spriing.com.au