Strova was made for fueling your day, and is the most feature-packed coffee tumbler there is. It has our 100% leakproof BevLock™ lid to seal in your beverages and prevent spills, an insulated stainless steel body with a ceramic-lined interior to preserve the true flavor of your beverage and keep it the perfect temperature, OctaLock™ thread system to make taking your lid on and off a breeze, and our MagFlip™ technology to assist in opening your lid and keeping it open while you sip. 100% Leakproof Lid Ceramic-Lined Interior Cup Holder Friendly Base 24+ Hours Cold/ 4+ Hours Hot