I have a large/wide Arba Kanfot. Is it permissible to fold over and sew the sides over to become smaller/narrower? If so, can a non-Jew do the sewing? Thank you.
In order to answer you I need to know how big are the arba kanfot? Are the so large that you would be embarrassed to walkout with such a large size? Also where to you want to sew it, on th corners or only in the between them?