Travel mug technology has come a long way in the last two decades. Though travel mugs existed before then it wasn’t until the corporate trend of office life took over and people began consuming coffee by gallons each month. Traditional travel mugs have handles and plastic lids with sip-tops. But with the advent of new light but strong stainless steel material, travel mugs have become more high-tech and efficient. These 17 oz. Vacuum Flasks are amazing new travel mug technology, they have stainless steel bodies that carry up to seventeen ounces of liquid storage space and have a convenient screw-top. But open up the screw-top and the real innovative features of this customizable vacuum flask will become evident; this flask has a smooth rim for easy sipping. These customizable vacuum flasks are great items to customize because of their multicolor options and quality custom imprint areas.