In contrast to technical clothing, casual shirts and tops are, in theory, less functional. However, this doesn't necessarily mean that you can't wear technical clothing in your free time, or vice versa. Functional clothing is great in the summer when it's hot, and you get sweaty. It's for this reason you'll find a large selection of functional shirts in our casual shirts category, which are also perfect worn in everyday life. Choose from a large number of long or short-sleeved shirts, polo shirts, sleeveless shirts and shirts with a crew or v-neck.