【100% LEAKPROOF】: It adopts the most advanced double-layer stainless steel design, narrow bottle mouth design, each bottle cap with a food grade silicone ring to ensure no water leakage, drink on the car/train/boat / bus / plane Don't worry about the water coming out. 【STAINLESS STEEL WATER BOTTLE】: Double-walled stainless steel bottle, which can keep liquid hot for 12 hours and drink cold for up to 12 hours. Even if the water bottle is filled with ice water, there will be no water droplets on the bottle. 【SAFE AND HEALTHY】: The 500ml high performance vacuum bottle is made of 304 food grade stainless steel. Hard, corrosion resistant, safe and healthy. The FDA has approved it to meet consumer needs. Of course, 100% free of BPA and phthalates. 【FASHION COLOR AND PERFECT SIZE】: A variety of fashionable colors are for you to choose. Suitable size: 27*7CM. In addition, a cup holder and a cup brush are provided free of charge, making them easy to carry and clean. 【MULTI-PURPOSE】: Our bottles are ideal for everyday use or to take anywhere: hiking, biking, beach, camping, gym, office or car Simple and practical, it is the best Christmas gift for friends, family, children, sons and daughters.