I had this flask turn up today from amazon; http://www.amazon.co.uk/Thermos-Ser...1413217887&sr=8-1&keywords=flask+thermos+work At 32 notes its a touch on the pricey side, but I'm fed up of having to buy a new cheap one every year. I filled it with boiling water at 11 this morning and its still scalding hot nearly 6 hours later even though I've opened it a few times and poured some out as in normal use. It should be a keeper. I've got plenty of beanie hats and gloves to keep the worst of the weather off too. What sort of prep are you guys doing?