The Nike Free Powerlines II is poised to hit the market draped in all sorts of grey tones for its debut. The latest one is the Nike Free Powerlines II ‘Strata Grey’. Everything that’s got the model buzzing is still in place (speckled soles, perforated side panels, etc.) but the blocking is switched just a bit, as the namesake grey gets boosted by a purple placement on the liners. Let us know your opinion on these after you check out the complete gallery and be sure to check back with Sneaker News for more info on the Nike Free Powerlines II going forward.