Nike India — originality of shoes

Address:

Sangli, Maharashtra

I brought nike downshifter 8 from amazon. They were sold by s3 sports india, pitampura, new delhi. They cost ₹3995. When i searched nike downshifter 8 on nike.com they were not the same as mine, they were of black colour and had a totally different pattern whereas mine are celestial teal and silver, also i couldn’t find them in the downshifter category. Also, i’m not sure if they are original so please guide to know whether they are original or not by some kind of bar code scanner or something.