INSULATION: Hydrapeak's insulated mug keeps your beverage hot for 10x longer than ceramic or glass. By using Double Wall insulation, our coffee thermos keeps drinks cold for 9 hours, hot for 3 hours, and prevents condensation from forming. STRENGTH: We designed our 18 oz travel coffee mug with strength in mind. Featuring a tough and colorful eye catching powder coating, and a rugged spill-proof Flip Lid; this reusable coffee cup is built to keep up with any journey. INNOVATIVE: Our stainless steel mug includes an innovative sliding lid that lets you take smooth sips of your favorite beverage while preventing splashes and spills. This makes it perfect for at home use, and even better for taking drinks to go. PERFECT BASKETBALL GIFT KIDS/ADULTS; With its sleek, modern design and convenient handle, this mug is both practical and stylish. Available for your favorite team, it makes an excellent gift for kids and adults. Whether you call it a tea mug, coffee cup insulated or a stainless steel coffee mug Hydrapeak has you covered. GUARANTEE: We take pride in the quality of all our products and are committed to ensuring that our customers are completely satisfied with their purchase. Hydrapeak insulated cups are made to last a lifetime: so, we include a limited lifetime warranty.