adidas Jeans MKII Trainers in Core Black / Dark Onix / Gum2. The legendary adidas Originals Jeans is back with the MKII leather. A deep Core Black upper is complimented by Dark Onix three-stripes to the side panel and heel pull. adidas branding can be found embossed to the sole unit and heel panel. A gum sole works well with the cream coloured inner.