These screw off top lids are interchangeable with our FLIP STRAW TOP LIDS that come with our stainless steel bottles with flip top straw lids only. These screw off lids DO NOT fit the SPORT TOP bottles. When using this screw off lid you get a tight seal when screwed on and when removed you can drink directly from our wide mouthed stainless steel bottles! Comes with a carbiner so you can easily clip to any bag.
Please note carefully that as of January 2011 we no longer carry the 500ml or 600ml aluminum bottles we previously offered on our site. These extra lids do NOT fit the aluminum bottles they are for the new stainless steel bottles only. Many thanks for your appreciation and understanding of this.