Bought a couple of Osprey bottles from Militarymart the other day. The seals are black but I'm assured they're genuine and they don't leak so I'm happy enough. I bought them to replace another military bottle that I bought ages ago - it came in a fake US military pouch so I assumed the bottle itself was a cheap Chinese knockoff. However, the same expert that verified the Osprey bottles assured me it's a genuine Dutch issue bottle (same as this one: http://www.surplusandoutdoors.com/s.../genuine-military-issue-used-high-988505.html). I tried giving it away on the Gift-it-on thread a while back but now I know it should fit my Dutch stainless cup, I think I'll hang onto it!