Souma is really susceptible to cracking up, and even memories will put him into laughing fits. But being self-conscious about this, he always tries to hide it. When he does this again at a clothing store his friend works at, the friend asks him why he does that, especially when it's so easy to tell anyway. Later, Shun also repeats the same sentiment...
It'll be for indoors, and black is easier 
to coordinate with other things.
سيكون للأماكن المُغلقة والأسود
يسهل تنسيق أيّ لون معه
Such ja was zum Drüberziehen und
Schwarz lässt sich mit allem kombinieren.
Es para interiores y el negro
es más fácil de combinar.
Es para interiores y el negro
es más fácil de combinar.
Pour porter en intérieur,
le noir ira avec tout.
Visto che devo indossarlo al chiuso,
forse nero è più facile da abbinare.
É num lugar fechado, então preto
combina melhor com outras peças.
Я же в помещении буду носить,
да и чёрный легко сочетать...