Schwalbe ('shwhall-beh') are (is?) the defacto quality standard for bicycle tires, especially the smaller size tires we use on most of our cool bikes and trikes.
Schwalbe is a brand name of Ralf Bohle GmbH, a German manufacturer of bicycle, and wheelchair tires. Schwalbe produces a wide range of tires for different cycling applications, but is best known for its commuting, touring and utility tires such as the Marathon range. Bicycles with small wheel sizes such as 16" (Brompton) or 20" (BMX) are also catered for, a market ignored by some larger manufacturers.
Schwalbe is based in Reichshof-Wehnrath near Cologne, Germany, manufacturing is carried out in their Indonesian and Vietnamese factories, which is co-owned, with its Korean joint-venture, production partner, PT Hung-A. (Wikipedia)
Leave it to the Germans to take something as 'simple' as tires and turn it into a science. At Schwalbe, designers study every conceivable aspect of performance to develop tires that perform at the absolute peak of performance in their specific application. The folks at Schwalbe aren't just looking out for cyclists, though. They started a tire recycling program in 1993. Recognizing the problem of disposing of 10 million bicycle tires a year in Germany alone, Schwalbe developed a system to separate the components of a tire into its raw materials for reuse. The program is still going strong.