A very rare, first look at a 100% AUTHENTIC Adidas Ultra Boost 4.0 unreleased SAMPLE! This is most likely the next generation of Ultraboosts coming up later this year or in 2018, but you can have them now (as I have these in hand and it's my only pair).

I believe these might be released somewhere down the road, but may look different from these samples if and when they release. These might be the Mystery Grey LTD color scheme from the next generation of UB's or perhaps a collab? Only time will tell and they may not even release in this color at all...

Check this link here: http://sneakernews.com/2017/03/01/adidas-ultra-boost-4-0/

Please note the official sample tags within the shoe as these are 100% authentic and not knockoffs, replicas or UA's.

Of course since it's an Adidas sample, it's a Men's Size US 9, UK 8.5, FR 42 2/3, JP 270.

They are brand new and never have been worn. Please note actual pictures of the shoes that are up for auction. Thanks for looking and please don't hesitates to ask any questions.