I have that oldschool canteen cover that was issued to me for deployments and I think those are nice, but I wanted a variant of my own for when I go hiking/camping so I got this badboy for my Nalgene 32 Oz Narrow Mouth and it fits like a glove. Haven't attached it to anything yet but the MOLLE seems legit enough, I've seen enough MOLLE and PALs webbing to know I could hook it up to a pack or vest if I needed. But if you're in the market for a nice Canteen cover I suggest this one.