Let's start with this outfit from his twitpic and a video from Sapporo collection. Eunhyuk was wearing an outfit from head to toe by Balmain. The blue leather jacket and his t-shirt are coming from Balmain Spring/Summer 2014 collection. We can't see his pants though, but I'm quite sure that his white jeans is also coming from the same brand collection, which I think has become his favorite so far, Balmain's famous rider jeans.
That nautical leather jacket which Eunhyuk was wearing costs around $4000 meanwhile for his t-shirt costs $415. Meanwhile for Donghae's jacket, I'm still looking for it, some online store didn't have this jacket for now.Here for the detail one for Donghae's jacket.