The primus trailbreak 0 75 litre vacuum flask is a versatile stylish and rugged double walled vacuum flask with a tapered design that will keep your hot drinks hot and your cold drinks cold making it a great container to take your favourite beverages with you on the move the trailbreak is made from high quality and durable stainless steel and as mentioned above has an unusual tapered shape this is to make it easier to hold even while wearing gloves and easier to slide into your rucksack this fla