We can alter school uniforms including:-
School shirts – shortened, lengthened, sleeves altered, buttons added or removed
School skirts – shortened, lengthened, waist altered, buttons added or removed
School trousers – shortened, lengthened, waist altered, buttons and zips replaced or added
School blouses – shortened, lengthened, sleeves altered, buttons added or removed
School blazers – shortened, lengthened, pockets altered, buttons added or removed
School coats – shortened, lengthened, buttons and zips replaced or added, sleeves altered.
School ties – shortened, lengthened, altered.
Further reading on Wiki.