In my boy's boarding school, they require boarders to order suitable suitcase, sturdy bag or boarding trunk to store belongings in boarding over the summer holiday.
All clothing including both bed linen and uniform should be sew-on / iron-on with name labelled. You can order those from the the school uniform suppliers or do it in Hong Kong instead
I had an offered last year for my son, but I declined. The reason is that they had not told us anything regarding the boarding arrangement and the subjects available even at the late June.