user: Question: Ron Jans is a manager of which kit maker?
Columns: ['Club', 'Location', 'Manager', 'Kit maker', 'Shirt sponsor']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['ADO Den Haag', 'The Hague', 'Raymond Atteveld', 'Hummel', 'Fit For Free']
SQL:

assistant: SELECT "Kit maker" FROM "Table" WHERE "Manager" = 'Ron Jans';