【 Double Wall Stainless Steel Travel Coffee Mug 】 CHANCCI travel coffee mugs feature advanced double-wall vacuum insulation technology, made of high quality 18/8 food-grade 304 stainless steel , keeps the beverage warm or cold for up to 4-6 hours. 【Insulated Coffee Mug with Lid】The insulated travel coffee mug designed with leak proof flip lid for easy sipping at any time, the screw lid equipped with a airtight silicone ring, provides a good leak-proof effect, securely fastens to the cup by twisting, helps to prevent leaking or splashing. 【Leak Proof & Non-Slip Coffee Tumbler Cup】The insulated leak proof coffee tumbler cup features a high-quality matte finish exterior with non-slip silicone sleeve that will not burn your hands, also provides sweat-proof and anti-slip properties, comfortable to touch and you are ready to go! 【Great Gifts Travel Coffee Cup for Men Women】This thermal coffee cup with stylish look can be given to lover, friends and family as a really nice gift for Birthday, Valentine's Day, Thanksgiving Day, Chrisrmas gifts . 【How to Make The Best Hot or Cold Effect?】 For Best Results of Your Stainless Steel Vacuum Coffee Mugs, Preheat or Precool your travel mug by filling it with hot or cold water; Let it stand for 5 minutes; Empty your coffee cup and immediately fill with your favorite hot or cold drinks. The CHANCCI insulated travel coffee mug with lid is the perfect companion to take your coffee with you. It's a good choice to go coffee thermos mug for leisure and application at home, office, road trips, camping and traveling, hiking, sporting active, picnics. It fits easily and feels comfortable in your hand. It is a good Ideal for business gifts and family gift.