The SportShaker is made in the USA and is 100% leak proof|Uses patented ProBlend Technology harnessing the power of kinetic energy|Studies show that kinetic based mixing elements that blend against the flow of material provide a more effective and smoother blend than shakers with free moving mixing elements that only flow with the material|The shaker features a screw-on cap with a convenient carry handle and a lid that snaps tight to secure the contents|ItBs a great giveaway for outdoor and sport events, gyms, or personal trainers, etc