I buy the parts for my sewing/repair kits seperately. I make SURE I buy thread like Coats and Clark Button & Craft and the IIRC #88 nylon upholstery/carpet. MUCH tougher than traditional plain twisted cotten. I just use a pencil and DeWalt to wind it onto steel (or plastic if u wish) bobbins.

Iron on patches, wire, safety pins, pins and duct tape. This is in my EDC with a dup in my BOB.

Saved the day (week) many times - business trips, a day at work, vacations, etc.