GPS / Smart Phone Bags and Holders. Especially smart phones are often unsuitable for mounting without a protective cover. At Motorrad Garage we have the complete range of SW-Motech smartphone holders and GPS bags. Splashproof bags are available for a wide range of GPS devices and smart phones. Bags and holders are available in 2 different sizes, accommodating a large range of GPS sizes. Bags have a sun visor, which is essential when trying to read maps from your device in bright sun light. Smart phone holders are made from Silikone and hold your device in place securely.