Sip, Sip, Hooray! Let’s hear it for the Shamrock thermal bottle! Made of double-wall stainless steel and featuring copper-lined vacuum insulation, this durable 17 oz bottle keeps drinks hot or cold for hours. The screw-on lid is also insulated to further control temperature and make it easy to sip on the go. Featuring a striking metallic Shamrock, this bottle stands out with its slate blue color and trendy powder finish.