These suckers just landed !! Made of stainless steel with an acryllic o-ringed sealed top to lock in your desired tempature.  Also they are opaque so lets just say mommy needs a little me time at the park, a chilled glass of pinot can go unoticed by the self righteous super moms, and lets face they are much easier to deal with having a wine buzz.  We just ask that the park be walking distance, we dont need anyone jumping behind the wheel of their family trucksters endangering the lives of us decent folk!
cheers