This Contigo West Loop Travel Mug with Stainless Steel West Loop Tea Infuser set has everything you need for a convenient on-the-go brewing solution. The Contigo West Loop Tea Infuser fits any into any Autoseal West Loop mug & was specifically designed for the West Loop Travel Mug family and therefore will ONLY fit this type of mug. Its fine, etched holes ensure superior brewing and guarantee no tea leaves or dust escape into the brew. The infuser comes with 3 detachable parts: the stainless steel basket works for loose leaf and bag tea, the mug clip securely snaps into any West Loop family lid, and the green drip cup makes transporting easy once steeping is complete. The 20 ounce West Loop Travel Mug features Contigo's one-touch Autoseal lid that automatically seals between sips to prevent spills. The West Loop travel mug provides convenient one-handed drinking for both left- and right-handed users, fits most car cup-holders, and fits under most single-serve coffee brewers. This double-wall vacuum-insulated mug is engineered to keep drinks hotter and colder longer. This vacuum-insulated mug keeps your drink at the optimal sipping temperature and eliminates condensation for dry hands.