I think you will struggle with a free service. Have a look at [this thread][1], which the consensus is that either the information is incomplete, inaccurate or both.

My expectation is you will have to apply to a paid service, or purchase the data directly from the clothing supplier.


  [1]: https://opendata.stackexchange.com/questions/562/is-there-a-global-database-of-all-products-with-ean-13-barcodes