When the Mu’min stands in Salaat, he should understand that he stands in Allah’s Presence. For the Divine Presence, the Shariah requires him to be dressed respectfully. It is haraam to be dressed in the lewd styles of the kuffaar when standing in the Divine Presence. Dress such as T-shirts and jeans; T-shirts or any other type of garment bearing logos and inscriptions; bermudas and the like are haraam. Wearing such kuffaar dress is prohibited at all times. Wearing such dress for Salaat magnifies the sin. Salaat performed with such kuffaar dress styles is Makrooh. If someone has performed Salaat with such dress, it is incumbent to repeat the Salaat within the time and with proper dress.
It is not permissible to enter a Musjid with Tshirts and other types of clothing on which appear slogans, logos and inscriptions even if the pictures are of inanimate objects.