This is the Sonic Mania Track Jacket.
It's a rather traditional looking track jacket with zip up front, split front pocket, white sides & white top-stripe long sleeves. It's a very dark navy blue (or black) The only Sonic element is the mid-size "Mania" logo on one side of the chest.
For over 60 dollars to get this, one might expect a little more design work to have gone into this fairly generic looking jacket. Maybe end the stripe on the sleeve with a tiny Sonic face, or hide Knuckles in the pocket edge for a surprise. Maybe the zipper pull could be a Sonic shoe, or a Tails logo on one of the cuffs or something. Design doesn't have to be outrageous or in your face (although that can be ok too) but some design SHOULD be there....at all, especially with a pricey item like this. This is a 2018 Sega Shop item.