Owala’s 20oz SmoothSip Slider is a travel mug that solves the primary annoyance of the category: the messy, drippy lid. Its clever sliding mechanism completely seals the drinking spout. This makes it genuinely leakproof when closed, a fact you’ll appreciate when tossing it into a bag or a crowded car cup holder.

The slide-to-sip action is smooth and requires one hand. The spout itself is seamless plastic, so your lips meet a clean surface without any uncomfortable seams. Double-wall insulation keeps coffee hot for hours, though like most stainless mugs, it’s not a substitute for a dedicated thermos for all-day heat. The 20-ounce, handle-free design fits standard cup holders and feels secure in your grip.

Available in colors like High Dive, it’s a straightforward, reliable daily driver. The lid disassembles for cleaning, which is essential. Just know the sliding mechanism adds a slight bit of complexity compared to a simple flip lid. For a spill-proof commute, it’s a smart, executed design.