This Flask is simply a flask he does not excelled by special design special is kept simple. He keeps tight and can be worn well in jackets and trouser pockets. The closure appeared at first glance labelig but seems to work well and keep. The only drawback is that it can be difficult to dry nachder cleaning because it's flat top instead of narrowing down the spout. Thus, there is always a small residue left which can not be readily pour out.