Duas for new clothes. Ask for the good of what is new, and refuge from its harm
When the Prophet ﷺ wore something new he named it and praised Allah (SWT), asking for its good and seeking refuge from any harm in it. The Companions also had kind words for a friend in new clothes.
3 sourced Du'as Arabic, transliteration, meaning, and source
Allahumma lakal-hamdu anta kasawtanihi, as'aluka min khayrihi wa khayri ma suni'a lahu, wa a'udhu bika min sharrihi wa sharri ma suni'a lah
“O Allah, to You is the praise, You have clothed me with this. I ask You for its goodness and the goodness of what it was made for, and I seek refuge from its evil and the evil of what it was made for.”