Travelers are advised to wear shirts with long sleeves and long trousers. Men began wearing long trousers instead of knee breeches. At the onset of puberty, they graduated to long trousers. Upper Secondary boys wear white long long trousers. At around 13 years, boys exchanged their knickerbockers for long trousers. He wears a simple white T-shirt with long trousers. Long trousers were at first used in the daytime. It included the service cap, jacket, long trousers, and black low-quarter shoes. For men, they comprise a blue tunic, a long bonnet, long trousers and shoes. During the summer months, the long trousers are replaced with Bermuda shorts. He wears long trousers and a tunic that leaves his chest partially exposed. Men must have long trousers on and women must cover their heads, arms and legs. Boys uniforms are often made of a light-coloured shirt, long trousers usually brown or blue. Visitors are required to wear modest clothing; "Lonely Planet" recommends long trousers and covered arms. For boys, the uniform generally includes dark-colored long trousers and a short- or long-sleeved shirt.