I've seen a lot of blokes wearing these and decided to look into them a bit deeper. I was quite pleased to find this; http://www.esseyepro.com/uploads/ESS_NSN_List(US).pdf Has anyone ordered these through their QM's before? For those that have them, what are they like? Any particular model's that stand out? They seem relatively cheap, so I thought I'd ask on here before I plunged in an bought something.